672720696 has 96 divisors (see below), whose sum is σ = 1861470000. Its totient is φ = 219428352.

The previous prime is 672720691. The next prime is 672720757. The reversal of 672720696 is 696027276.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672720691) 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 23 ways as a sum of consecutive naturals, for example, 782715 + ... + 783573.

Almost surely, 2^672720696 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 672720696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (930735000).

672720696 is an abundant number, since it is smaller than the sum of its proper divisors (1188749304).

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

672720696 is a wasteful number, since it uses less digits than its factorization.

672720696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1093 (or 1086 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The square root of 672720696 is about 25936.8597945087. The cubic root of 672720696 is about 876.2168412968.

The spelling of 672720696 in words is "six hundred seventy-two million, seven hundred twenty thousand, six hundred ninety-six".