73722506 has 64 divisors (see below), whose sum is σ = 140434560. Its totient is φ = 28508160.

The previous prime is 73722499. The next prime is 73722533. The reversal of 73722506 is 60522737.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 286730 + ... + 286986.

It is an arithmetic number, because the mean of its divisors is an integer number (2194290).

Almost surely, 2^73722506 is an apocalyptic number.

73722506 is a deficient number, since it is larger than the sum of its proper divisors (66712054).

73722506 is a wasteful number, since it uses less digits than its factorization.

73722506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359.

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 73722506 is about 8586.1811068717. The cubic root of 73722506 is about 419.3082073393.

The spelling of 73722506 in words is "seventy-three million, seven hundred twenty-two thousand, five hundred six".