79213894 has 8 divisors (see below), whose sum is σ = 121349088. Its totient is φ = 38764200.

The previous prime is 79213891. The next prime is 79213903. The reversal of 79213894 is 49831297.

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

It is a self number, because there is not a number n which added to its sum of digits gives 79213894.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79213891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 421257 + ... + 421444.

It is an arithmetic number, because the mean of its divisors is an integer number (15168636).

Almost surely, 2^79213894 is an apocalyptic number.

79213894 is a deficient number, since it is larger than the sum of its proper divisors (42135194).

79213894 is a wasteful number, since it uses less digits than its factorization.

79213894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842750.

The product of its digits is 108864, while the sum is 43.

The square root of 79213894 is about 8900.2187613564. The cubic root of 79213894 is about 429.4709447951.

The spelling of 79213894 in words is "seventy-nine million, two hundred thirteen thousand, eight hundred ninety-four".