897867992 has 16 divisors (see below), whose sum is σ = 1924002960. Its totient is φ = 384800544.

The previous prime is 897867991. The next prime is 897868007. The reversal of 897867992 is 299768798.

It is a super-2 number, since 2×897867992² = 1612333862116224128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897867991) 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, 8016623 + ... + 8016734.

It is an arithmetic number, because the mean of its divisors is an integer number (120250185).

Almost surely, 2^897867992 is an apocalyptic number.

It is an amenable number.

897867992 is an abundant number, since it is smaller than the sum of its proper divisors (1026134968).

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

897867992 is a wasteful number, since it uses less digits than its factorization.

897867992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16033370 (or 16033366 counting only the distinct ones).

The product of its digits is 27433728, while the sum is 65.

The square root of 897867992 is about 29964.4454645835. The cubic root of 897867992 is about 964.7263999246.

The spelling of 897867992 in words is "eight hundred ninety-seven million, eight hundred sixty-seven thousand, nine hundred ninety-two".