79896247 has 4 divisors (see below), whose sum is σ = 82651320. Its totient is φ = 77141176.

The previous prime is 79896241. The next prime is 79896263. The reversal of 79896247 is 74269897.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74269897 = 13 ⋅5713069.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79896247 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79896194 and 79896203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79896241) 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, 1377493 + ... + 1377550.

It is an arithmetic number, because the mean of its divisors is an integer number (20662830).

Almost surely, 2^79896247 is an apocalyptic number.

79896247 is a deficient number, since it is larger than the sum of its proper divisors (2755073).

79896247 is a wasteful number, since it uses less digits than its factorization.

79896247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2755072.

The product of its digits is 1524096, while the sum is 52.

The square root of 79896247 is about 8938.4700592439. The cubic root of 79896247 is about 430.7005832025.

The spelling of 79896247 in words is "seventy-nine million, eight hundred ninety-six thousand, two hundred forty-seven".