672576929 has 2 divisors, whose sum is σ = 672576930. Its totient is φ = 672576928.

The previous prime is 672576923. The next prime is 672577013. The reversal of 672576929 is 929675276.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 611424529 + 61152400 = 24727^2 + 7820^2 .

It is a cyclic number.

It is not a de Polignac number, because 672576929 - 2⁸ = 672576673 is a prime.

It is not a weakly prime, because it can be changed into another prime (672576923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336288464 + 336288465.

It is an arithmetic number, because the mean of its divisors is an integer number (336288465).

Almost surely, 2^672576929 is an apocalyptic number.

It is an amenable number.

672576929 is a deficient number, since it is larger than the sum of its proper divisors (1).

672576929 is an equidigital number, since it uses as much as digits as its factorization.

672576929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2857680, while the sum is 53.

The square root of 672576929 is about 25934.0881659641. The cubic root of 672576929 is about 876.1544181435.

The spelling of 672576929 in words is "six hundred seventy-two million, five hundred seventy-six thousand, nine hundred twenty-nine".