73222907 has 4 divisors (see below), whose sum is σ = 73457160. Its totient is φ = 72988656.

The previous prime is 73222901. The next prime is 73222943. The reversal of 73222907 is 70922237.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73222907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73222901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116657 + ... + 117282.

It is an arithmetic number, because the mean of its divisors is an integer number (18364290).

Almost surely, 2^73222907 is an apocalyptic number.

73222907 is a deficient number, since it is larger than the sum of its proper divisors (234253).

73222907 is a wasteful number, since it uses less digits than its factorization.

73222907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234252.

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 73222907 is about 8557.0384479678. The cubic root of 73222907 is about 418.3588773293.

The spelling of 73222907 in words is "seventy-three million, two hundred twenty-two thousand, nine hundred seven".