79191383 has 4 divisors (see below), whose sum is σ = 79301040. Its totient is φ = 79081728.

The previous prime is 79191367. The next prime is 79191401. The reversal of 79191383 is 38319197.

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

It is a cyclic number.

It is not a de Polignac number, because 79191383 - 2⁴ = 79191367 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 79191383.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79191313) 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, 53738 + ... + 55191.

It is an arithmetic number, because the mean of its divisors is an integer number (19825260).

Almost surely, 2^79191383 is an apocalyptic number.

79191383 is a deficient number, since it is larger than the sum of its proper divisors (109657).

79191383 is a wasteful number, since it uses less digits than its factorization.

79191383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109656.

The product of its digits is 40824, while the sum is 41.

The square root of 79191383 is about 8898.9540396611. The cubic root of 79191383 is about 429.4302585977.

The spelling of 79191383 in words is "seventy-nine million, one hundred ninety-one thousand, three hundred eighty-three".