79170378 has 48 divisors (see below), whose sum is σ = 193900320. Its totient is φ = 21428064.

The previous prime is 79170367. The next prime is 79170379. The reversal of 79170378 is 87307197.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (79170379) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1501 + ... + 12672.

It is an arithmetic number, because the mean of its divisors is an integer number (4039590).

Almost surely, 2^79170378 is an apocalyptic number.

79170378 is an abundant number, since it is smaller than the sum of its proper divisors (114729942).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79170378 is a wasteful number, since it uses less digits than its factorization.

79170378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14211 (or 14204 counting only the distinct ones).

The product of its (nonzero) digits is 74088, while the sum is 42.

The square root of 79170378 is about 8897.7737665104. The cubic root of 79170378 is about 429.3922873780.

The spelling of 79170378 in words is "seventy-nine million, one hundred seventy thousand, three hundred seventy-eight".