79691743 has 8 divisors (see below), whose sum is σ = 82605312. Its totient is φ = 76829016.

The previous prime is 79691737. The next prime is 79691761. The reversal of 79691743 is 34719697.

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

It is a cyclic number.

It is not a de Polignac number, because 79691743 - 2¹⁷ = 79560671 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79691693 and 79691702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79391743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9505 + ... + 15802.

It is an arithmetic number, because the mean of its divisors is an integer number (10325664).

Almost surely, 2^79691743 is an apocalyptic number.

79691743 is a deficient number, since it is larger than the sum of its proper divisors (2913569).

79691743 is a wasteful number, since it uses less digits than its factorization.

79691743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25421.

The product of its digits is 285768, while the sum is 46.

The square root of 79691743 is about 8927.0231880510. The cubic root of 79691743 is about 430.3327926706.

The spelling of 79691743 in words is "seventy-nine million, six hundred ninety-one thousand, seven hundred forty-three".