897564907 has 12 divisors (see below), whose sum is σ = 944920768. Its totient is φ = 851947200.

The previous prime is 897564901. The next prime is 897564923. The reversal of 897564907 is 709465798.

It is not a de Polignac number, because 897564907 - 2⁷ = 897564779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (897564901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54982 + ... + 69412.

Almost surely, 2^897564907 is an apocalyptic number.

897564907 is a deficient number, since it is larger than the sum of its proper divisors (47355861).

897564907 is a wasteful number, since it uses less digits than its factorization.

897564907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14550 (or 14509 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 55.

The square root of 897564907 is about 29959.3876272530. The cubic root of 897564907 is about 964.6178364498.

The spelling of 897564907 in words is "eight hundred ninety-seven million, five hundred sixty-four thousand, nine hundred seven".