813080626 has 4 divisors (see below), whose sum is σ = 1219620942. Its totient is φ = 406540312.

The previous prime is 813080599. The next prime is 813080657. The reversal of 813080626 is 626080318.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 726572025 + 86508601 = 26955^2 + 9301^2 .

It is a super-2 number, since 2×813080626² = 1322200208753103752, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 813080591 and 813080600.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203270155 + ... + 203270158.

Almost surely, 2^813080626 is an apocalyptic number.

813080626 is a deficient number, since it is larger than the sum of its proper divisors (406540316).

813080626 is a wasteful number, since it uses less digits than its factorization.

813080626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406540315.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 813080626 is about 28514.5686623522. The cubic root of 813080626 is about 933.3500124854.

The spelling of 813080626 in words is "eight hundred thirteen million, eighty thousand, six hundred twenty-six".