2897979520 has 32 divisors (see below), whose sum is σ = 6927983820. Its totient is φ = 1159191552.

The previous prime is 2897979509. The next prime is 2897979593. The reversal of 2897979520 is 259797982.

It can be written as a sum of positive squares in 2 ways, for example, as 2711493184 + 186486336 = 52072^2 + 13656^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2263407 + ... + 2264686.

Almost surely, 2^2897979520 is an apocalyptic number.

2897979520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2897979520 is an abundant number, since it is smaller than the sum of its proper divisors (4030004300).

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

2897979520 is an equidigital number, since it uses as much as digits as its factorization.

2897979520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4528112 (or 4528100 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 58.

The square root of 2897979520 is about 53832.8851168131. The cubic root of 2897979520 is about 1425.7118872498.

The spelling of 2897979520 in words is "two billion, eight hundred ninety-seven million, nine hundred seventy-nine thousand, five hundred twenty".