72673806 has 16 divisors (see below), whose sum is σ = 145756800. Its totient is φ = 24156408.

The previous prime is 72673747. The next prime is 72673807. The reversal of 72673806 is 60837627.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72673807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14716 + ... + 19023.

It is an arithmetic number, because the mean of its divisors is an integer number (9109800).

Almost surely, 2^72673806 is an apocalyptic number.

72673806 is an abundant number, since it is smaller than the sum of its proper divisors (73082994).

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

72673806 is a wasteful number, since it uses less digits than its factorization.

72673806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34103.

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 72673806 is about 8524.8933131154. The cubic root of 72673806 is about 417.3104899651.

The spelling of 72673806 in words is "seventy-two million, six hundred seventy-three thousand, eight hundred six".