72672219 has 12 divisors (see below), whose sum is σ = 105068496. Its totient is φ = 48403152.

The previous prime is 72672209. The next prime is 72672241. The reversal of 72672219 is 91227627.

It is not a de Polignac number, because 72672219 - 2⁹ = 72671707 is a prime.

It is a super-2 number, since 2×72672219² = 10562502828767922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (72672209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8629 + ... + 14825.

It is an arithmetic number, because the mean of its divisors is an integer number (8755708).

Almost surely, 2^72672219 is an apocalyptic number.

72672219 is a deficient number, since it is larger than the sum of its proper divisors (32396277).

72672219 is a wasteful number, since it uses less digits than its factorization.

72672219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7506 (or 7503 counting only the distinct ones).

The product of its digits is 21168, while the sum is 36.

The square root of 72672219 is about 8524.8002322635. The cubic root of 72672219 is about 417.3074522977.

The spelling of 72672219 in words is "seventy-two million, six hundred seventy-two thousand, two hundred nineteen".