673967264 has 12 divisors (see below), whose sum is σ = 1326873114. Its totient is φ = 336983616.

The previous prime is 673967257. The next prime is 673967267. The reversal of 673967264 is 462769376.

It can be written as a sum of positive squares in only one way, i.e., 497290000 + 176677264 = 22300^2 + 13292^2 .

It is not an unprimeable number, because it can be changed into a prime (673967267) 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, 10530707 + ... + 10530770.

Almost surely, 2^673967264 is an apocalyptic number.

It is an amenable number.

673967264 is a deficient number, since it is larger than the sum of its proper divisors (652905850).

673967264 is a wasteful number, since it uses less digits than its factorization.

673967264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21061487 (or 21061479 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 50.

The square root of 673967264 is about 25960.8794920357. The cubic root of 673967264 is about 876.7577244655.

The spelling of 673967264 in words is "six hundred seventy-three million, nine hundred sixty-seven thousand, two hundred sixty-four".