897994233 has 24 divisors (see below), whose sum is σ = 1319635200. Its totient is φ = 588307104.

The previous prime is 897994217. The next prime is 897994249. The reversal of 897994233 is 332499798.

It is an interprime number because it is at equal distance from previous prime (897994217) and next prime (897994249).

It is not a de Polignac number, because 897994233 - 2⁴ = 897994217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 897994233.

It is not an unprimeable number, because it can be changed into a prime (897994633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 287283 + ... + 290391.

It is an arithmetic number, because the mean of its divisors is an integer number (54984800).

Almost surely, 2^897994233 is an apocalyptic number.

It is an amenable number.

897994233 is a deficient number, since it is larger than the sum of its proper divisors (421640967).

897994233 is a wasteful number, since it uses less digits than its factorization.

897994233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3661 (or 3658 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 54.

The square root of 897994233 is about 29966.5519037476. The cubic root of 897994233 is about 964.7716115887.

The spelling of 897994233 in words is "eight hundred ninety-seven million, nine hundred ninety-four thousand, two hundred thirty-three".