79542359 has 4 divisors (see below), whose sum is σ = 85661016. Its totient is φ = 73423704.

The previous prime is 79542319. The next prime is 79542367. The reversal of 79542359 is 95324597.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95324597 = 31 ⋅3074987.

It is a cyclic number.

It is not a de Polignac number, because 79542359 - 2⁸ = 79542103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79542319) 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, 3059309 + ... + 3059334.

It is an arithmetic number, because the mean of its divisors is an integer number (21415254).

Almost surely, 2^79542359 is an apocalyptic number.

79542359 is a deficient number, since it is larger than the sum of its proper divisors (6118657).

79542359 is a wasteful number, since it uses less digits than its factorization.

79542359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6118656.

The product of its digits is 340200, while the sum is 44.

The square root of 79542359 is about 8918.6523085049. The cubic root of 79542359 is about 430.0637349190.

The spelling of 79542359 in words is "seventy-nine million, five hundred forty-two thousand, three hundred fifty-nine".