676926561 has 4 divisors (see below), whose sum is σ = 902568752. Its totient is φ = 451284372.

The previous prime is 676926539. The next prime is 676926563. The reversal of 676926561 is 165629676.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 676926561 - 2⁹ = 676926049 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 676926561.

It is not an unprimeable number, because it can be changed into a prime (676926563) 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 in 3 ways as a sum of consecutive naturals, for example, 112821091 + ... + 112821096.

It is an arithmetic number, because the mean of its divisors is an integer number (225642188).

Almost surely, 2^676926561 is an apocalyptic number.

It is an amenable number.

676926561 is a deficient number, since it is larger than the sum of its proper divisors (225642191).

676926561 is a wasteful number, since it uses less digits than its factorization.

676926561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225642190.

The product of its digits is 816480, while the sum is 48.

The square root of 676926561 is about 26017.8123792144. The cubic root of 676926561 is about 878.0390914737.

The spelling of 676926561 in words is "six hundred seventy-six million, nine hundred twenty-six thousand, five hundred sixty-one".