2897512620 has 48 divisors (see below), whose sum is σ = 8176939008. Its totient is φ = 766584000.

The previous prime is 2897512609. The next prime is 2897512621. The reversal of 2897512620 is 262157982.

It is not an unprimeable number, because it can be changed into a prime (2897512621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182506 + ... + 197745.

It is an arithmetic number, because the mean of its divisors is an integer number (170352896).

Almost surely, 2^2897512620 is an apocalyptic number.

2897512620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2897512620 is an abundant number, since it is smaller than the sum of its proper divisors (5279426388).

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

2897512620 is a wasteful number, since it uses less digits than its factorization.

2897512620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380390 (or 380388 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 2897512620 is about 53828.5483735164. The cubic root of 2897512620 is about 1425.6353165877.

The spelling of 2897512620 in words is "two billion, eight hundred ninety-seven million, five hundred twelve thousand, six hundred twenty".