2897491028 has 12 divisors (see below), whose sum is σ = 5072534880. Its totient is φ = 1448195352.

The previous prime is 2897491021. The next prime is 2897491063. The reversal of 2897491028 is 8201947982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2897491021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125576 + ... + 146847.

It is an arithmetic number, because the mean of its divisors is an integer number (422711240).

Almost surely, 2^2897491028 is an apocalyptic number.

It is an amenable number.

2897491028 is a deficient number, since it is larger than the sum of its proper divisors (2175043852).

2897491028 is a wasteful number, since it uses less digits than its factorization.

2897491028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275086 (or 275084 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 50.

The square root of 2897491028 is about 53828.3478104242. The cubic root of 2897491028 is about 1425.6317753440.

The spelling of 2897491028 in words is "two billion, eight hundred ninety-seven million, four hundred ninety-one thousand, twenty-eight".