813450357 has 20 divisors (see below), whose sum is σ = 1286636076. Its totient is φ = 510399360.

The previous prime is 813450347. The next prime is 813450383. The reversal of 813450357 is 753054318.

It can be written as a sum of positive squares in 2 ways, for example, as 634586481 + 178863876 = 25191^2 + 13374^2 .

It is not a de Polignac number, because 813450357 - 2⁶ = 813450293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (813450347) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 293994 + ... + 296747.

Almost surely, 2^813450357 is an apocalyptic number.

It is an amenable number.

813450357 is a deficient number, since it is larger than the sum of its proper divisors (473185719).

813450357 is a wasteful number, since it uses less digits than its factorization.

813450357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590770 (or 590761 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 813450357 is about 28521.0511201814. The cubic root of 813450357 is about 933.4914646893.

The spelling of 813450357 in words is "eight hundred thirteen million, four hundred fifty thousand, three hundred fifty-seven".