672896544 has 96 divisors (see below), whose sum is σ = 1804420800. Its totient is φ = 219512832.

The previous prime is 672896503. The next prime is 672896557. The reversal of 672896544 is 445698276.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1498432 + ... + 1498880.

It is an arithmetic number, because the mean of its divisors is an integer number (18796050).

Almost surely, 2^672896544 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 672896544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (902210400).

672896544 is an abundant number, since it is smaller than the sum of its proper divisors (1131524256).

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

672896544 is a wasteful number, since it uses less digits than its factorization.

672896544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762 (or 754 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 51.

The square root of 672896544 is about 25940.2494976436. The cubic root of 672896544 is about 876.2931818229.

The spelling of 672896544 in words is "six hundred seventy-two million, eight hundred ninety-six thousand, five hundred forty-four".