813744970 has 16 divisors (see below), whose sum is σ = 1466593128. Its totient is φ = 325086400.

The previous prime is 813744937. The next prime is 813744983. The reversal of 813744970 is 79447318.

It can be written as a sum of positive squares in 4 ways, for example, as 435014449 + 378730521 = 20857^2 + 19461^2 .

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, 43081 + ... + 59020.

Almost surely, 2^813744970 is an apocalyptic number.

813744970 is a deficient number, since it is larger than the sum of its proper divisors (652848158).

813744970 is a wasteful number, since it uses less digits than its factorization.

813744970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102905.

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 813744970 is about 28526.2154868114. The cubic root of 813744970 is about 933.6041474623.

The spelling of 813744970 in words is "eight hundred thirteen million, seven hundred forty-four thousand, nine hundred seventy".