672705792 has 324 divisors, whose sum is σ = 2261808640. Its totient is φ = 191600640.

The previous prime is 672705791. The next prime is 672705821. The reversal of 672705792 is 297507276.

672705792 is a `hidden beast` number, since 6 + 7 + 2 + 70 + 579 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672705791) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5296833 + ... + 5296959.

Almost surely, 2^672705792 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 672705792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1130904320).

672705792 is an abundant number, since it is smaller than the sum of its proper divisors (1589102848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

672705792 is a wasteful number, since it uses less digits than its factorization.

672705792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190 (or 162 counting only the distinct ones).

The product of its (nonzero) digits is 370440, while the sum is 45.

The square root of 672705792 is about 25936.5724798016. The cubic root of 672705792 is about 876.2103704428.

The spelling of 672705792 in words is "six hundred seventy-two million, seven hundred five thousand, seven hundred ninety-two".