897585816 has 32 divisors (see below), whose sum is σ = 2247888240. Its totient is φ = 298672128.

The previous prime is 897585803. The next prime is 897585823. The reversal of 897585816 is 618585798.

It is a happy number.

It is a congruent number.

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, 18561 + ... + 46256.

Almost surely, 2^897585816 is an apocalyptic number.

It is an amenable number.

897585816 is an abundant number, since it is smaller than the sum of its proper divisors (1350302424).

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

897585816 is a wasteful number, since it uses less digits than its factorization.

897585816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65403 (or 65399 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 57.

The square root of 897585816 is about 29959.7365809514. The cubic root of 897585816 is about 964.6253267300.

The spelling of 897585816 in words is "eight hundred ninety-seven million, five hundred eighty-five thousand, eight hundred sixteen".