672192684 has 72 divisors (see below), whose sum is σ = 1775854080. Its totient is φ = 214173792.

The previous prime is 672192683. The next prime is 672192721. The reversal of 672192684 is 486291276.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (672192683) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 68137 + ... + 77375.

It is an arithmetic number, because the mean of its divisors is an integer number (24664640).

Almost surely, 2^672192684 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 672192684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (887927040).

672192684 is an abundant number, since it is smaller than the sum of its proper divisors (1103661396).

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

672192684 is a wasteful number, since it uses less digits than its factorization.

672192684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9339 (or 9334 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 672192684 is about 25926.6790005970. The cubic root of 672192684 is about 875.9875365713.

The spelling of 672192684 in words is "six hundred seventy-two million, one hundred ninety-two thousand, six hundred eighty-four".