79339543 has 2 divisors, whose sum is σ = 79339544. Its totient is φ = 79339542.

The previous prime is 79339541. The next prime is 79339597. The reversal of 79339543 is 34593397.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 79339543 - 2¹ = 79339541 is a prime.

Together with 79339541, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 79339543.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79339541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39669771 + 39669772.

It is an arithmetic number, because the mean of its divisors is an integer number (39669772).

Almost surely, 2^79339543 is an apocalyptic number.

79339543 is a deficient number, since it is larger than the sum of its proper divisors (1).

79339543 is an equidigital number, since it uses as much as digits as its factorization.

79339543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 306180, while the sum is 43.

The square root of 79339543 is about 8907.2747235055. The cubic root of 79339543 is about 429.6979003006.

The spelling of 79339543 in words is "seventy-nine million, three hundred thirty-nine thousand, five hundred forty-three".