673947968 has 28 divisors (see below), whose sum is σ = 1338193920. Its totient is φ = 336765312.

The previous prime is 673947941. The next prime is 673947977. The reversal of 673947968 is 869749376.

It is a super-3 number, since 3×673947968³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186305 + ... + 189887.

It is an arithmetic number, because the mean of its divisors is an integer number (47792640).

Almost surely, 2^673947968 is an apocalyptic number.

It is an amenable number.

673947968 is a deficient number, since it is larger than the sum of its proper divisors (664245952).

673947968 is a wasteful number, since it uses less digits than its factorization.

673947968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6534 (or 6524 counting only the distinct ones).

The product of its digits is 13716864, while the sum is 59.

The square root of 673947968 is about 25960.5078532759. The cubic root of 673947968 is about 876.7493570569.

The spelling of 673947968 in words is "six hundred seventy-three million, nine hundred forty-seven thousand, nine hundred sixty-eight".