472478731 has 2 divisors, whose sum is σ = 472478732. Its totient is φ = 472478730.

The previous prime is 472478717. The next prime is 472478753. The reversal of 472478731 is 137874274.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 472478731 - 2¹³ = 472470539 is a prime.

It is a super-2 number, since 2×472478731² = 446472302494740722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (472478791) 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 as a sum of consecutive naturals, namely, 236239365 + 236239366.

It is an arithmetic number, because the mean of its divisors is an integer number (236239366).

Almost surely, 2^472478731 is an apocalyptic number.

472478731 is a deficient number, since it is larger than the sum of its proper divisors (1).

472478731 is an equidigital number, since it uses as much as digits as its factorization.

472478731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 263424, while the sum is 43.

The square root of 472478731 is about 21736.5758802991. The cubic root of 472478731 is about 778.8624284190.

The spelling of 472478731 in words is "four hundred seventy-two million, four hundred seventy-eight thousand, seven hundred thirty-one".