79365543 has 4 divisors (see below), whose sum is σ = 105820728. Its totient is φ = 52910360.

The previous prime is 79365523. The next prime is 79365551. The reversal of 79365543 is 34556397.

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 79365543 - 2²⁵ = 45811111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 79365495 and 79365504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79365523) 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, 13227588 + ... + 13227593.

It is an arithmetic number, because the mean of its divisors is an integer number (26455182).

Almost surely, 2^79365543 is an apocalyptic number.

79365543 is a deficient number, since it is larger than the sum of its proper divisors (26455185).

79365543 is a wasteful number, since it uses less digits than its factorization.

79365543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26455184.

The product of its digits is 340200, while the sum is 42.

The square root of 79365543 is about 8908.7340851549. The cubic root of 79365543 is about 429.7448332876.

The spelling of 79365543 in words is "seventy-nine million, three hundred sixty-five thousand, five hundred forty-three".