472932813 has 4 divisors (see below), whose sum is σ = 630577088. Its totient is φ = 315288540.

The previous prime is 472932799. The next prime is 472932821. The reversal of 472932813 is 318239274.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 472932813 - 2⁶ = 472932749 is a prime.

It is a super-2 number, since 2×472932813² = 447330891224185938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (472932883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78822133 + ... + 78822138.

It is an arithmetic number, because the mean of its divisors is an integer number (157644272).

Almost surely, 2^472932813 is an apocalyptic number.

It is an amenable number.

472932813 is a deficient number, since it is larger than the sum of its proper divisors (157644275).

472932813 is a wasteful number, since it uses less digits than its factorization.

472932813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157644274.

The product of its digits is 72576, while the sum is 39.

The square root of 472932813 is about 21747.0184853005. The cubic root of 472932813 is about 779.1118605786. Note that the first 3 decimals are identical.

The spelling of 472932813 in words is "four hundred seventy-two million, nine hundred thirty-two thousand, eight hundred thirteen".