472666931 has 4 divisors (see below), whose sum is σ = 515636664. Its totient is φ = 429697200.

The previous prime is 472666927. The next prime is 472666937. The reversal of 472666931 is 139666274.

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

It is a cyclic number.

It is not a de Polignac number, because 472666931 - 2² = 472666927 is a prime.

It is a super-2 number, since 2×472666931² = 446828055321917522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (472666937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21484850 + ... + 21484871.

It is an arithmetic number, because the mean of its divisors is an integer number (128909166).

Almost surely, 2^472666931 is an apocalyptic number.

472666931 is a deficient number, since it is larger than the sum of its proper divisors (42969733).

472666931 is a wasteful number, since it uses less digits than its factorization.

472666931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42969732.

The product of its digits is 326592, while the sum is 44.

The square root of 472666931 is about 21740.9045579985. The cubic root of 472666931 is about 778.9658281005.

The spelling of 472666931 in words is "four hundred seventy-two million, six hundred sixty-six thousand, nine hundred thirty-one".