472961813 has 4 divisors (see below), whose sum is σ = 497854560. Its totient is φ = 448069068.

The previous prime is 472961803. The next prime is 472961821. The reversal of 472961813 is 318169274.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-472961813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (472961803) 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, 12446345 + ... + 12446382.

It is an arithmetic number, because the mean of its divisors is an integer number (124463640).

Almost surely, 2^472961813 is an apocalyptic number.

It is an amenable number.

472961813 is a deficient number, since it is larger than the sum of its proper divisors (24892747).

472961813 is a wasteful number, since it uses less digits than its factorization.

472961813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24892746.

The product of its digits is 72576, while the sum is 41.

The square root of 472961813 is about 21747.6852331461. The cubic root of 472961813 is about 779.1277851677.

The spelling of 472961813 in words is "four hundred seventy-two million, nine hundred sixty-one thousand, eight hundred thirteen".