813970898 has 32 divisors (see below), whose sum is σ = 1364958000. Its totient is φ = 361460736.

The previous prime is 813970879. The next prime is 813970921. The reversal of 813970898 is 898079318.

It can be written as a sum of positive squares in 8 ways, for example, as 9284209 + 804686689 = 3047^2 + 28367^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 234278 + ... + 237726.

Almost surely, 2^813970898 is an apocalyptic number.

813970898 is a deficient number, since it is larger than the sum of its proper divisors (550987102).

813970898 is a wasteful number, since it uses less digits than its factorization.

813970898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3806.

The product of its (nonzero) digits is 870912, while the sum is 53.

The square root of 813970898 is about 28530.1752185296. The cubic root of 813970898 is about 933.6905413604.

It can be divided in two parts, 8 and 13970898, that multiplied together give a square (111767184 = 10572²).

The spelling of 813970898 in words is "eight hundred thirteen million, nine hundred seventy thousand, eight hundred ninety-eight".