2989836 has 36 divisors (see below), whose sum is σ = 7705152. Its totient is φ = 977184.

The previous prime is 2989823. The next prime is 2989849. The reversal of 2989836 is 6389892.

It is an interprime number because it is at equal distance from previous prime (2989823) and next prime (2989849).

It is a tau number, because it is divible by the number of its divisors (36).

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 2989791 and 2989800.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1125 + ... + 2691.

It is an arithmetic number, because the mean of its divisors is an integer number (214032).

2^2989836 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2989836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3852576).

2989836 is an abundant number, since it is smaller than the sum of its proper divisors (4715316).

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

2989836 is a wasteful number, since it uses less digits than its factorization.

2989836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1630 (or 1625 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 2989836 is about 1729.1142241044. The cubic root of 2989836 is about 144.0618946886.

Adding to 2989836 its product of digits (186624), we get a triangular number (3176460 = T₂₅₂₀).

The spelling of 2989836 in words is "two million, nine hundred eighty-nine thousand, eight hundred thirty-six".