676691264 has 28 divisors (see below), whose sum is σ = 1346242164. Its totient is φ = 337480704.

The previous prime is 676691243. The next prime is 676691269. The reversal of 676691264 is 462196676.

It can be written as a sum of positive squares in 2 ways, for example, as 594969664 + 81721600 = 24392^2 + 9040^2 .

It is a super-2 number, since 2×676691264² = 915822133547835392, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (676691269) 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 in 3 ways as a sum of consecutive naturals, for example, 12092 + ... + 38724.

Almost surely, 2^676691264 is an apocalyptic number.

676691264 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

676691264 is a deficient number, since it is larger than the sum of its proper divisors (669550900).

676691264 is a wasteful number, since it uses less digits than its factorization.

676691264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27042 (or 27032 counting only the distinct ones).

The product of its digits is 653184, while the sum is 47.

The square root of 676691264 is about 26013.2901417718. The cubic root of 676691264 is about 877.9373453767.

The spelling of 676691264 in words is "six hundred seventy-six million, six hundred ninety-one thousand, two hundred sixty-four".