72653706 has 32 divisors (see below), whose sum is σ = 162288000. Its totient is φ = 24092640.

The previous prime is 72653687. The next prime is 72653717. The reversal of 72653706 is 60735627.

It is a happy 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, 7366 + ... + 14126.

It is an arithmetic number, because the mean of its divisors is an integer number (5071500).

Almost surely, 2^72653706 is an apocalyptic number.

72653706 is an abundant number, since it is smaller than the sum of its proper divisors (89634294).

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

72653706 is a wasteful number, since it uses less digits than its factorization.

72653706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6971 (or 6965 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 36.

The square root of 72653706 is about 8523.7143312056. The cubic root of 72653706 is about 417.2720134047.

The spelling of 72653706 in words is "seventy-two million, six hundred fifty-three thousand, seven hundred six".