813239346 has 16 divisors (see below), whose sum is σ = 1666149408. Its totient is φ = 264468000.

The previous prime is 813239279. The next prime is 813239347. The reversal of 813239346 is 643932318.

It is a super-2 number, since 2×813239346² = 1322716467765015432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (813239347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1652680 + ... + 1653171.

It is an arithmetic number, because the mean of its divisors is an integer number (104134338).

Almost surely, 2^813239346 is an apocalyptic number.

813239346 is an abundant number, since it is smaller than the sum of its proper divisors (852910062).

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

813239346 is a wasteful number, since it uses less digits than its factorization.

813239346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3305897.

The product of its digits is 93312, while the sum is 39.

The square root of 813239346 is about 28517.3516652581. The cubic root of 813239346 is about 933.4107410572.

The spelling of 813239346 in words is "eight hundred thirteen million, two hundred thirty-nine thousand, three hundred forty-six".