72684271 has 8 divisors (see below), whose sum is σ = 79481088. Its totient is φ = 65919000.

The previous prime is 72684247. The next prime is 72684277. The reversal of 72684271 is 17248627.

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 72684271 - 2⁵ = 72684239 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72684271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72684277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2925 + ... + 12406.

It is an arithmetic number, because the mean of its divisors is an integer number (9935136).

Almost surely, 2^72684271 is an apocalyptic number.

72684271 is a deficient number, since it is larger than the sum of its proper divisors (6796817).

72684271 is a wasteful number, since it uses less digits than its factorization.

72684271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15773.

The product of its digits is 37632, while the sum is 37.

The square root of 72684271 is about 8525.5070816931. The cubic root of 72684271 is about 417.3305198535.

The spelling of 72684271 in words is "seventy-two million, six hundred eighty-four thousand, two hundred seventy-one".