72179 has 4 divisors (see below), whose sum is σ = 73080. Its totient is φ = 71280.

The previous prime is 72173. The next prime is 72211. The reversal of 72179 is 97127.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 317 + ... + 494.

It is an arithmetic number, because the mean of its divisors is an integer number (18270).

2⁷²¹⁷⁹ is an apocalyptic number.

72179 is a deficient number, since it is larger than the sum of its proper divisors (901).

72179 is an equidigital number, since it uses as much as digits as its factorization.

72179 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900.

The product of its digits is 882, while the sum is 26.

The square root of 72179 is about 268.6614970553. The cubic root of 72179 is about 41.6361233939.

The spelling of 72179 in words is "seventy-two thousand, one hundred seventy-nine".