472780031 has 2 divisors, whose sum is σ = 472780032. Its totient is φ = 472780030.

The previous prime is 472779997. The next prime is 472780079. The reversal of 472780031 is 130087274.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-472780031 is a prime.

It is a super-2 number, since 2×472780031² = 447041915424721922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 472780031.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (472780531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 236390015 + 236390016.

It is an arithmetic number, because the mean of its divisors is an integer number (236390016).

Almost surely, 2^472780031 is an apocalyptic number.

472780031 is a deficient number, since it is larger than the sum of its proper divisors (1).

472780031 is an equidigital number, since it uses as much as digits as its factorization.

472780031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 472780031 is about 21743.5054901458. The cubic root of 472780031 is about 779.0279536012.

The spelling of 472780031 in words is "four hundred seventy-two million, seven hundred eighty thousand, thirty-one".