72279 has 8 divisors (see below), whose sum is σ = 107120. Its totient is φ = 48168.

The previous prime is 72277. The next prime is 72287. The reversal of 72279 is 97227.

It is not a de Polignac number, because 72279 - 2¹ = 72277 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 2677 = 72279 / (7 + 2 + 2 + 7 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72271) 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, 1312 + ... + 1365.

It is an arithmetic number, because the mean of its divisors is an integer number (13390).

2⁷²²⁷⁹ is an apocalyptic number.

72279 is a deficient number, since it is larger than the sum of its proper divisors (34841).

72279 is a wasteful number, since it uses less digits than its factorization.

72279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2686 (or 2680 counting only the distinct ones).

The product of its digits is 1764, while the sum is 27.

The square root of 72279 is about 268.8475404388. The cubic root of 72279 is about 41.6553427005.

It can be divided in two parts, 72 and 279, that added together give a triangular number (351 = T₂₆).

The spelling of 72279 in words is "seventy-two thousand, two hundred seventy-nine".