672204636 has 48 divisors (see below), whose sum is σ = 1751930880. Its totient is φ = 222888240.

The previous prime is 672204619. The next prime is 672204653. The reversal of 672204636 is 636402276.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (672204619) and next prime (672204653).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 672204636.

It is a congruent number.

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, 4335 + ... + 36921.

It is an arithmetic number, because the mean of its divisors is an integer number (36498560).

Almost surely, 2^672204636 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 672204636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (875965440).

672204636 is an abundant number, since it is smaller than the sum of its proper divisors (1079726244).

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

672204636 is a wasteful number, since it uses less digits than its factorization.

672204636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32791 (or 32783 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

The square root of 672204636 is about 25926.9094957343. The cubic root of 672204636 is about 875.9927284065.

The spelling of 672204636 in words is "six hundred seventy-two million, two hundred four thousand, six hundred thirty-six".