79859347 has 4 divisors (see below), whose sum is σ = 80273320. Its totient is φ = 79445376.

The previous prime is 79859341. The next prime is 79859369. The reversal of 79859347 is 74395897.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74395897 = 787 ⋅94531.

It is a cyclic number.

It is not a de Polignac number, because 79859347 - 2¹⁹ = 79335059 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79859294 and 79859303.

It is not an unprimeable number, because it can be changed into a prime (79859341) 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, 206697 + ... + 207082.

It is an arithmetic number, because the mean of its divisors is an integer number (20068330).

Almost surely, 2^79859347 is an apocalyptic number.

79859347 is a deficient number, since it is larger than the sum of its proper divisors (413973).

79859347 is a wasteful number, since it uses less digits than its factorization.

79859347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413972.

The product of its digits is 1905120, while the sum is 52.

The square root of 79859347 is about 8936.4057092323. The cubic root of 79859347 is about 430.6342667841.

The spelling of 79859347 in words is "seventy-nine million, eight hundred fifty-nine thousand, three hundred forty-seven".