897761634 has 48 divisors (see below), whose sum is σ = 2278557216. Its totient is φ = 233184000.

The previous prime is 897761621. The next prime is 897761677. The reversal of 897761634 is 436167798.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 135567 + ... + 142034.

It is an arithmetic number, because the mean of its divisors is an integer number (47469942).

Almost surely, 2^897761634 is an apocalyptic number.

897761634 is an abundant number, since it is smaller than the sum of its proper divisors (1380795582).

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

897761634 is a wasteful number, since it uses less digits than its factorization.

897761634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277631 (or 277624 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 51.

The square root of 897761634 is about 29962.6706753587. The cubic root of 897761634 is about 964.6883058235.

The spelling of 897761634 in words is "eight hundred ninety-seven million, seven hundred sixty-one thousand, six hundred thirty-four".