472961917 has 2 divisors, whose sum is σ = 472961918. Its totient is φ = 472961916.

The previous prime is 472961897. The next prime is 472961939. The reversal of 472961917 is 719169274.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 472019076 + 942841 = 21726^2 + 971^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-472961917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (472961617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 236480958 + 236480959.

It is an arithmetic number, because the mean of its divisors is an integer number (236480959).

Almost surely, 2^472961917 is an apocalyptic number.

It is an amenable number.

472961917 is a deficient number, since it is larger than the sum of its proper divisors (1).

472961917 is an equidigital number, since it uses as much as digits as its factorization.

472961917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 190512, while the sum is 46.

The square root of 472961917 is about 21747.6876242050. The cubic root of 472961917 is about 779.1278422754.

The spelling of 472961917 in words is "four hundred seventy-two million, nine hundred sixty-one thousand, nine hundred seventeen".