72973955 has 8 divisors (see below), whose sum is σ = 88419552. Its totient is φ = 57811968.

The previous prime is 72973909. The next prime is 72973991. The reversal of 72973955 is 55937927.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72973955 - 2¹² = 72969859 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70334 + ... + 71363.

It is an arithmetic number, because the mean of its divisors is an integer number (11052444).

Almost surely, 2^72973955 is an apocalyptic number.

72973955 is a deficient number, since it is larger than the sum of its proper divisors (15445597).

72973955 is a wasteful number, since it uses less digits than its factorization.

72973955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141805.

The product of its digits is 595350, while the sum is 47.

The square root of 72973955 is about 8542.4794410054. The cubic root of 72973955 is about 417.8842101234.

The spelling of 72973955 in words is "seventy-two million, nine hundred seventy-three thousand, nine hundred fifty-five".