79247459 has 4 divisors (see below), whose sum is σ = 81980160. Its totient is φ = 76514760.

The previous prime is 79247453. The next prime is 79247473. The reversal of 79247459 is 95474297.

79247459 = T₁₃₀₆ + T₁₃₀₇ + ... + T₁₃₉₂.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95474297 = 19 ⋅5024963.

It is not a de Polignac number, because 79247459 - 2¹⁶ = 79181923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79247453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1366307 + ... + 1366364.

It is an arithmetic number, because the mean of its divisors is an integer number (20495040).

Almost surely, 2^79247459 is an apocalyptic number.

79247459 is a deficient number, since it is larger than the sum of its proper divisors (2732701).

79247459 is a wasteful number, since it uses less digits than its factorization.

79247459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2732700.

The product of its digits is 635040, while the sum is 47.

The square root of 79247459 is about 8902.1041894599. The cubic root of 79247459 is about 429.5315955891.

The spelling of 79247459 in words is "seventy-nine million, two hundred forty-seven thousand, four hundred fifty-nine".