672243764 has 12 divisors (see below), whose sum is σ = 1187421984. Its totient is φ = 332980344.

The previous prime is 672243743. The next prime is 672243797. The reversal of 672243764 is 467342276.

It is a happy number.

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, 784904 + ... + 785759.

It is an arithmetic number, because the mean of its divisors is an integer number (98951832).

Almost surely, 2^672243764 is an apocalyptic number.

It is an amenable number.

672243764 is a deficient number, since it is larger than the sum of its proper divisors (515178220).

672243764 is a wasteful number, since it uses less digits than its factorization.

672243764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1570774 (or 1570772 counting only the distinct ones).

The product of its digits is 338688, while the sum is 41.

The square root of 672243764 is about 25927.6640675553. The cubic root of 672243764 is about 876.0097248074.

The spelling of 672243764 in words is "six hundred seventy-two million, two hundred forty-three thousand, seven hundred sixty-four".