897838980 has 24 divisors (see below), whose sum is σ = 2513949312. Its totient is φ = 239423712.

The previous prime is 897838973. The next prime is 897839039. The reversal of 897838980 is 89838798.

It is a super-2 number, since 2×897838980² = 1612229668014880800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60), and also a Moran number because the ratio is a prime number: 14963983 = 897838980 / (8 + 9 + 7 + 8 + 3 + 8 + 9 + 8 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7481932 + ... + 7482051.

It is an arithmetic number, because the mean of its divisors is an integer number (104747888).

Almost surely, 2^897838980 is an apocalyptic number.

It is an amenable number.

897838980 is an abundant number, since it is smaller than the sum of its proper divisors (1616110332).

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

897838980 is a wasteful number, since it uses less digits than its factorization.

897838980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14963995 (or 14963993 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 60.

The square root of 897838980 is about 29963.9613535994. The cubic root of 897838980 is about 964.7160090342.

The spelling of 897838980 in words is "eight hundred ninety-seven million, eight hundred thirty-eight thousand, nine hundred eighty".