79688543 has 12 divisors (see below), whose sum is σ = 89733504. Its totient is φ = 70672800.

The previous prime is 79688533. The next prime is 79688591. The reversal of 79688543 is 34588697.

It is not a de Polignac number, because 79688543 - 2¹⁶ = 79623007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79688491 and 79688500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79688533) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3071 + ... + 12992.

It is an arithmetic number, because the mean of its divisors is an integer number (7477792).

Almost surely, 2^79688543 is an apocalyptic number.

79688543 is a deficient number, since it is larger than the sum of its proper divisors (10044961).

79688543 is a wasteful number, since it uses less digits than its factorization.

79688543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16126 (or 16115 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 50.

The square root of 79688543 is about 8926.8439551725. The cubic root of 79688543 is about 430.3270326286.

The spelling of 79688543 in words is "seventy-nine million, six hundred eighty-eight thousand, five hundred forty-three".