897567428 has 24 divisors (see below), whose sum is σ = 1716793344. Its totient is φ = 408758400.

The previous prime is 897567401. The next prime is 897567511. The reversal of 897567428 is 824765798.

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, 210788 + ... + 215003.

It is an arithmetic number, because the mean of its divisors is an integer number (71533056).

Almost surely, 2^897567428 is an apocalyptic number.

It is an amenable number.

897567428 is a deficient number, since it is larger than the sum of its proper divisors (819225916).

897567428 is a wasteful number, since it uses less digits than its factorization.

897567428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425843 (or 425841 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 56.

The square root of 897567428 is about 29959.4297008471. The cubic root of 897567428 is about 964.6187395598.

The spelling of 897567428 in words is "eight hundred ninety-seven million, five hundred sixty-seven thousand, four hundred twenty-eight".