2989620 has 72 divisors (see below), whose sum is σ = 9611784. Its totient is φ = 749568.

The previous prime is 2989619. The next prime is 2989621. The reversal of 2989620 is 269892.

2989620 is a `hidden beast` number, since 29 + 8 + 9 + 620 = 666.

It is an interprime number because it is at equal distance from previous prime (2989619) and next prime (2989621).

It can be written as a sum of positive squares in 4 ways, for example, as 1340964 + 1648656 = 1158^2 + 1284^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2989621) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2572 + ... + 3548.

It is an arithmetic number, because the mean of its divisors is an integer number (133497).

2^2989620 is an apocalyptic number.

2989620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2989620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4805892).

2989620 is an abundant number, since it is smaller than the sum of its proper divisors (6622164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2989620 is a wasteful number, since it uses less digits than its factorization.

2989620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009 (or 1004 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 2989620 is about 1729.0517632506. The cubic root of 2989620 is about 144.0584253658.

The spelling of 2989620 in words is "two million, nine hundred eighty-nine thousand, six hundred twenty".