2897233521 has 32 divisors (see below), whose sum is σ = 4760249088. Its totient is φ = 1526342400.

The previous prime is 2897233447. The next prime is 2897233523. The reversal of 2897233521 is 1253327982.

It is not a de Polignac number, because 2897233521 - 2¹⁴ = 2897217137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2897233523) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 233371 + ... + 245471.

It is an arithmetic number, because the mean of its divisors is an integer number (148757784).

Almost surely, 2^2897233521 is an apocalyptic number.

2897233521 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2897233521 is a deficient number, since it is larger than the sum of its proper divisors (1863015567).

2897233521 is a wasteful number, since it uses less digits than its factorization.

2897233521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13001.

The product of its digits is 181440, while the sum is 42.

The square root of 2897233521 is about 53825.9558298782. The cubic root of 2897233521 is about 1425.5895409840.

The spelling of 2897233521 in words is "two billion, eight hundred ninety-seven million, two hundred thirty-three thousand, five hundred twenty-one".