897971610 has 32 divisors (see below), whose sum is σ = 2159111232. Its totient is φ = 239016960.

The previous prime is 897971593. The next prime is 897971651. The reversal of 897971610 is 16179798.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 897971610.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10951 + ... + 43770.

It is an arithmetic number, because the mean of its divisors is an integer number (67472226).

Almost surely, 2^897971610 is an apocalyptic number.

897971610 is an abundant number, since it is smaller than the sum of its proper divisors (1261139622).

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

897971610 is a wasteful number, since it uses less digits than its factorization.

897971610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55278.

The product of its (nonzero) digits is 190512, while the sum is 48.

The square root of 897971610 is about 29966.1744305141. The cubic root of 897971610 is about 964.7635097507.

The spelling of 897971610 in words is "eight hundred ninety-seven million, nine hundred seventy-one thousand, six hundred ten".