79381693 has 4 divisors (see below), whose sum is σ = 79508128. Its totient is φ = 79255260.

The previous prime is 79381691. The next prime is 79381711. The reversal of 79381693 is 39618397.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 79381693 - 2¹ = 79381691 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79381691) 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, 62271 + ... + 63532.

It is an arithmetic number, because the mean of its divisors is an integer number (19877032).

Almost surely, 2^79381693 is an apocalyptic number.

It is an amenable number.

79381693 is a deficient number, since it is larger than the sum of its proper divisors (126435).

79381693 is a wasteful number, since it uses less digits than its factorization.

79381693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126434.

The product of its digits is 244944, while the sum is 46.

The square root of 79381693 is about 8909.6404529027. The cubic root of 79381693 is about 429.7739807324.

The spelling of 79381693 in words is "seventy-nine million, three hundred eighty-one thousand, six hundred ninety-three".