897616407 has 16 divisors (see below), whose sum is σ = 1213859840. Its totient is φ = 589915872.

The previous prime is 897616351. The next prime is 897616409. The reversal of 897616407 is 704616798.

It is a de Polignac number, because none of the positive numbers 2^k-897616407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897616409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171138 + ... + 176304.

It is an arithmetic number, because the mean of its divisors is an integer number (75866240).

Almost surely, 2^897616407 is an apocalyptic number.

897616407 is a deficient number, since it is larger than the sum of its proper divisors (316243433).

897616407 is a wasteful number, since it uses less digits than its factorization.

897616407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5982.

The product of its (nonzero) digits is 508032, while the sum is 48.

The square root of 897616407 is about 29960.2471117980. The cubic root of 897616407 is about 964.6362852061.

The spelling of 897616407 in words is "eight hundred ninety-seven million, six hundred sixteen thousand, four hundred seven".