2897064690 has 64 divisors (see below), whose sum is σ = 7928274816. Its totient is φ = 671173632.

The previous prime is 2897064683. The next prime is 2897064719. The reversal of 2897064690 is 964607982.

It is a happy number.

It is a super-2 number, since 2×2897064690² = 16785967636089592200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 211852 + ... + 225111.

It is an arithmetic number, because the mean of its divisors is an integer number (123879294).

Almost surely, 2^2897064690 is an apocalyptic number.

2897064690 is an abundant number, since it is smaller than the sum of its proper divisors (5031210126).

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

2897064690 is a wasteful number, since it uses less digits than its factorization.

2897064690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437003.

The product of its (nonzero) digits is 1306368, while the sum is 51.

The square root of 2897064690 is about 53824.3875023209. The cubic root of 2897064690 is about 1425.5618492359.

The spelling of 2897064690 in words is "two billion, eight hundred ninety-seven million, sixty-four thousand, six hundred ninety".