897631801 has 16 divisors (see below), whose sum is σ = 1035253440. Its totient is φ = 769720320.

The previous prime is 897631793. The next prime is 897631811. The reversal of 897631801 is 108136798.

It is a cyclic number.

It is not a de Polignac number, because 897631801 - 2³ = 897631793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (897631811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39481 + ... + 57913.

It is an arithmetic number, because the mean of its divisors is an integer number (64703340).

Almost surely, 2^897631801 is an apocalyptic number.

It is an amenable number.

897631801 is a deficient number, since it is larger than the sum of its proper divisors (137621639).

897631801 is a wasteful number, since it uses less digits than its factorization.

897631801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18696.

The product of its (nonzero) digits is 72576, while the sum is 43.

The square root of 897631801 is about 29960.5040177898. The cubic root of 897631801 is about 964.6417996352.

The spelling of 897631801 in words is "eight hundred ninety-seven million, six hundred thirty-one thousand, eight hundred one".