672577013 has 2 divisors, whose sum is σ = 672577014. Its totient is φ = 672577012.

The previous prime is 672576929. The next prime is 672577043. The reversal of 672577013 is 310775276.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 359216209 + 313360804 = 18953^2 + 17702^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-672577013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (672577043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336288506 + 336288507.

It is an arithmetic number, because the mean of its divisors is an integer number (336288507).

Almost surely, 2^672577013 is an apocalyptic number.

It is an amenable number.

672577013 is a deficient number, since it is larger than the sum of its proper divisors (1).

672577013 is an equidigital number, since it uses as much as digits as its factorization.

672577013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61740, while the sum is 38.

The square root of 672577013 is about 25934.0897854542. The cubic root of 672577013 is about 876.1544546186.

It can be divided in two parts, 6725 and 77013, that added together give a palindrome (83738).

The spelling of 672577013 in words is "six hundred seventy-two million, five hundred seventy-seven thousand, thirteen".