672919164 has 120 divisors (see below), whose sum is σ = 1811224800. Its totient is φ = 217766016.

The previous prime is 672919157. The next prime is 672919171. The reversal of 672919164 is 461919276.

It is an interprime number because it is at equal distance from previous prime (672919157) and next prime (672919171).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2558497 + ... + 2558759.

It is an arithmetic number, because the mean of its divisors is an integer number (15093540).

Almost surely, 2^672919164 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 672919164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (905612400).

672919164 is an abundant number, since it is smaller than the sum of its proper divisors (1138305636).

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

672919164 is a wasteful number, since it uses less digits than its factorization.

672919164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481 (or 470 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 672919164 is about 25940.6854959540. The cubic root of 672919164 is about 876.3030008309.

The spelling of 672919164 in words is "six hundred seventy-two million, nine hundred nineteen thousand, one hundred sixty-four".