72727275 has 24 divisors (see below), whose sum is σ = 127317744. Its totient is φ = 36505600.

The previous prime is 72727247. The next prime is 72727301. The reversal of 72727275 is 57272727.

It is not a de Polignac number, because 72727275 - 2⁵ = 72727243 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27246 + ... + 29795.

It is an arithmetic number, because the mean of its divisors is an integer number (5304906).

Almost surely, 2^72727275 is an apocalyptic number.

72727275 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

72727275 is a deficient number, since it is larger than the sum of its proper divisors (54590469).

72727275 is a wasteful number, since it uses less digits than its factorization.

72727275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57071 (or 57066 counting only the distinct ones).

The product of its digits is 96040, while the sum is 39.

The square root of 72727275 is about 8528.0287874749. The cubic root of 72727275 is about 417.4128088327.

The spelling of 72727275 in words is "seventy-two million, seven hundred twenty-seven thousand, two hundred seventy-five".