672783577 has 2 divisors, whose sum is σ = 672783578. Its totient is φ = 672783576.

The previous prime is 672783569. The next prime is 672783589. The reversal of 672783577 is 775387276.

672783577 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 571257801 + 101525776 = 23901^2 + 10076^2 .

It is a cyclic number.

It is not a de Polignac number, because 672783577 - 2³ = 672783569 is a prime.

It is not a weakly prime, because it can be changed into another prime (672783277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336391788 + 336391789.

It is an arithmetic number, because the mean of its divisors is an integer number (336391789).

Almost surely, 2^672783577 is an apocalyptic number.

It is an amenable number.

672783577 is a deficient number, since it is larger than the sum of its proper divisors (1).

672783577 is an equidigital number, since it uses as much as digits as its factorization.

672783577 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3457440, while the sum is 52.

The square root of 672783577 is about 25938.0719599588. The cubic root of 672783577 is about 876.2441412222.

The spelling of 672783577 in words is "six hundred seventy-two million, seven hundred eighty-three thousand, five hundred seventy-seven".