813270972 has 24 divisors (see below), whose sum is σ = 1903374592. Its totient is φ = 270270000.

The previous prime is 813270959. The next prime is 813271001. The reversal of 813270972 is 279072318.

It is a super-2 number, since 2×813270972² = 1322819347795649568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 813270972.

It is a congruent number.

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, 98404 + ... + 106347.

Almost surely, 2^813270972 is an apocalyptic number.

It is an amenable number.

813270972 is an abundant number, since it is smaller than the sum of its proper divisors (1090103620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

813270972 is a wasteful number, since it uses less digits than its factorization.

813270972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205089 (or 205087 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 813270972 is about 28517.9061643733. The cubic root of 813270972 is about 933.4228406789.

The spelling of 813270972 in words is "eight hundred thirteen million, two hundred seventy thousand, nine hundred seventy-two".