672517277 has 2 divisors, whose sum is σ = 672517278. Its totient is φ = 672517276.

The previous prime is 672517201. The next prime is 672517319. The reversal of 672517277 is 772715276.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 671276281 + 1240996 = 25909^2 + 1114^2 .

It is a cyclic number.

It is not a de Polignac number, because 672517277 - 2²⁰ = 671468701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (672510277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336258638 + 336258639.

It is an arithmetic number, because the mean of its divisors is an integer number (336258639).

Almost surely, 2^672517277 is an apocalyptic number.

It is an amenable number.

672517277 is a deficient number, since it is larger than the sum of its proper divisors (1).

672517277 is an equidigital number, since it uses as much as digits as its factorization.

672517277 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288120, while the sum is 44.

The square root of 672517277 is about 25932.9380711095. The cubic root of 672517277 is about 876.1285148322.

The spelling of 672517277 in words is "six hundred seventy-two million, five hundred seventeen thousand, two hundred seventy-seven".