2987985 has 64 divisors (see below), whose sum is σ = 6451200. Its totient is φ = 1140480.

The previous prime is 2987983. The next prime is 2987989. The reversal of 2987985 is 5897892.

It is a happy number.

It is not a de Polignac number, because 2987985 - 2¹ = 2987983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2987983) 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 63 ways as a sum of consecutive naturals, for example, 14916 + ... + 15114.

It is an arithmetic number, because the mean of its divisors is an integer number (100800).

2^2987985 is an apocalyptic number.

It is an amenable number.

2987985 is an abundant number, since it is smaller than the sum of its proper divisors (3463215).

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

2987985 is a wasteful number, since it uses less digits than its factorization.

2987985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238.

The product of its digits is 362880, while the sum is 48.

The square root of 2987985 is about 1728.5788960878. The cubic root of 2987985 is about 144.0321590983.

The spelling of 2987985 in words is "two million, nine hundred eighty-seven thousand, nine hundred eighty-five".