672824784 has 80 divisors (see below), whose sum is σ = 1789371584. Its totient is φ = 217728000.

The previous prime is 672824729. The next prime is 672824807. The reversal of 672824784 is 487428276.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 372684 + ... + 374484.

Almost surely, 2^672824784 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 672824784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (894685792).

672824784 is an abundant number, since it is smaller than the sum of its proper divisors (1116546800).

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

672824784 is a wasteful number, since it uses less digits than its factorization.

672824784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2036 (or 2030 counting only the distinct ones).

The product of its digits is 1204224, while the sum is 48.

The square root of 672824784 is about 25938.8662820872. The cubic root of 672824784 is about 876.2620304100.

The spelling of 672824784 in words is "six hundred seventy-two million, eight hundred twenty-four thousand, seven hundred eighty-four".