79215 has 8 divisors (see below), whose sum is σ = 126768. Its totient is φ = 42240.

The previous prime is 79201. The next prime is 79229. The reversal of 79215 is 51297.

It is an interprime number because it is at equal distance from previous prime (79201) and next prime (79229).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 79215 - 2⁶ = 79151 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

79215 is a lucky number.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2626 + ... + 2655.

It is an arithmetic number, because the mean of its divisors is an integer number (15846).

2⁷⁹²¹⁵ is an apocalyptic number.

79215 is a deficient number, since it is larger than the sum of its proper divisors (47553).

79215 is a wasteful number, since it uses less digits than its factorization.

79215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5289.

The product of its digits is 630, while the sum is 24.

The square root of 79215 is about 281.4515944172. The cubic root of 79215 is about 42.9472943572.

The spelling of 79215 in words is "seventy-nine thousand, two hundred fifteen".