72214227 has 32 divisors (see below), whose sum is σ = 112819200. Its totient is φ = 45562176.

The previous prime is 72214217. The next prime is 72214229. The reversal of 72214227 is 72241227.

It is not a de Polignac number, because 72214227 - 2⁴ = 72214211 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 72214227.

It is not an unprimeable number, because it can be changed into a prime (72214229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63399 + ... + 64527.

It is an arithmetic number, because the mean of its divisors is an integer number (3525600).

Almost surely, 2^72214227 is an apocalyptic number.

72214227 is a deficient number, since it is larger than the sum of its proper divisors (40604973).

72214227 is a wasteful number, since it uses less digits than its factorization.

72214227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1264 (or 1258 counting only the distinct ones).

The product of its digits is 3136, while the sum is 27.

The square root of 72214227 is about 8497.8954453441. The cubic root of 72214227 is about 416.4289580306.

Subtracting 72214227 from its reverse (72241227), we obtain a cube (27000 = 30³).

The spelling of 72214227 in words is "seventy-two million, two hundred fourteen thousand, two hundred twenty-seven".