672674657 has 2 divisors, whose sum is σ = 672674658. Its totient is φ = 672674656.

The previous prime is 672674623. The next prime is 672674701. The reversal of 672674657 is 756476276.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 623800576 + 48874081 = 24976^2 + 6991^2 .

It is a cyclic number.

It is not a de Polignac number, because 672674657 - 2¹⁰ = 672673633 is a prime.

It is not a weakly prime, because it can be changed into another prime (672674617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336337328 + 336337329.

It is an arithmetic number, because the mean of its divisors is an integer number (336337329).

Almost surely, 2^672674657 is an apocalyptic number.

It is an amenable number.

672674657 is a deficient number, since it is larger than the sum of its proper divisors (1).

672674657 is an equidigital number, since it uses as much as digits as its factorization.

672674657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2963520, while the sum is 50.

The square root of 672674657 is about 25935.9722586218. The cubic root of 672674657 is about 876.1968522842.

The spelling of 672674657 in words is "six hundred seventy-two million, six hundred seventy-four thousand, six hundred fifty-seven".