897917402 has 16 divisors (see below), whose sum is σ = 1356657120. Its totient is φ = 445706352.

The previous prime is 897917393. The next prime is 897917411. The reversal of 897917402 is 204719798.

It is an interprime number because it is at equal distance from previous prime (897917393) and next prime (897917411).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 304049 + ... + 306987.

It is an arithmetic number, because the mean of its divisors is an integer number (84791070).

Almost surely, 2^897917402 is an apocalyptic number.

897917402 is a deficient number, since it is larger than the sum of its proper divisors (458739718).

897917402 is a wasteful number, since it uses less digits than its factorization.

897917402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3997.

The product of its (nonzero) digits is 254016, while the sum is 47.

The square root of 897917402 is about 29965.2699303711. The cubic root of 897917402 is about 964.7440960141.

The spelling of 897917402 in words is "eight hundred ninety-seven million, nine hundred seventeen thousand, four hundred two".