72674155 has 4 divisors (see below), whose sum is σ = 87208992. Its totient is φ = 58139320.

The previous prime is 72674149. The next prime is 72674177. The reversal of 72674155 is 55147627.

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

It is not a de Polignac number, because 72674155 - 2⁵ = 72674123 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7267411 + ... + 7267420.

It is an arithmetic number, because the mean of its divisors is an integer number (21802248).

Almost surely, 2^72674155 is an apocalyptic number.

72674155 is a deficient number, since it is larger than the sum of its proper divisors (14534837).

72674155 is a wasteful number, since it uses less digits than its factorization.

72674155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14534836.

The product of its digits is 58800, while the sum is 37.

The square root of 72674155 is about 8524.9137825552. The cubic root of 72674155 is about 417.3111579781.

The spelling of 72674155 in words is "seventy-two million, six hundred seventy-four thousand, one hundred fifty-five".