672490957 has 2 divisors, whose sum is σ = 672490958. Its totient is φ = 672490956.

The previous prime is 672490877. The next prime is 672490969. The reversal of 672490957 is 759094276.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 519201796 + 153289161 = 22786^2 + 12381^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-672490957 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 672490957.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (672490157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336245478 + 336245479.

It is an arithmetic number, because the mean of its divisors is an integer number (336245479).

Almost surely, 2^672490957 is an apocalyptic number.

It is an amenable number.

672490957 is a deficient number, since it is larger than the sum of its proper divisors (1).

672490957 is an equidigital number, since it uses as much as digits as its factorization.

672490957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 952560, while the sum is 49.

The square root of 672490957 is about 25932.4306033970. The cubic root of 672490957 is about 876.1170851366.

The spelling of 672490957 in words is "six hundred seventy-two million, four hundred ninety thousand, nine hundred fifty-seven".