2988729 has 6 divisors (see below), whose sum is σ = 4317066. Its totient is φ = 1992480.

The previous prime is 2988721. The next prime is 2988731. The reversal of 2988729 is 9278892.

It can be written as a sum of positive squares in only one way, i.e., 2812329 + 176400 = 1677^2 + 420^2 .

It is not a de Polignac number, because 2988729 - 2³ = 2988721 is a prime.

It is a d-powerful number, because it can be written as 2¹² + 9³ + 8² + 8⁴ + 7⁷ + 2²¹ + 9⁵ .

It is not an unprimeable number, because it can be changed into a prime (2988721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 166032 + ... + 166049.

It is an arithmetic number, because the mean of its divisors is an integer number (719511).

2^2988729 is an apocalyptic number.

It is an amenable number.

2988729 is a deficient number, since it is larger than the sum of its proper divisors (1328337).

2988729 is a wasteful number, since it uses less digits than its factorization.

2988729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332087 (or 332084 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 2988729 is about 1728.7940883749. The cubic root of 2988729 is about 144.0441126427.

The spelling of 2988729 in words is "two million, nine hundred eighty-eight thousand, seven hundred twenty-nine".