79509343 has 4 divisors (see below), whose sum is σ = 79539840. Its totient is φ = 79478848.

The previous prime is 79509301. The next prime is 79509349. The reversal of 79509343 is 34390597.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79509343 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79509296 and 79509305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79509349) 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, 10930 + ... + 16687.

It is an arithmetic number, because the mean of its divisors is an integer number (19884960).

Almost surely, 2^79509343 is an apocalyptic number.

79509343 is a deficient number, since it is larger than the sum of its proper divisors (30497).

79509343 is a wasteful number, since it uses less digits than its factorization.

79509343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30496.

The product of its (nonzero) digits is 102060, while the sum is 40.

The square root of 79509343 is about 8916.8011640947. The cubic root of 79509343 is about 430.0042238633.

The spelling of 79509343 in words is "seventy-nine million, five hundred nine thousand, three hundred forty-three".