79974853 has 4 divisors (see below), whose sum is σ = 91399840. Its totient is φ = 68549868.

The previous prime is 79974803. The next prime is 79974859. The reversal of 79974853 is 35847997.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35847997 = 31 ⋅1156387.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79974853 is a prime.

It is a super-2 number, since 2×79974853² = 12791954224743218, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 79974853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79974859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5712483 + ... + 5712496.

It is an arithmetic number, because the mean of its divisors is an integer number (22849960).

Almost surely, 2^79974853 is an apocalyptic number.

It is an amenable number.

79974853 is a deficient number, since it is larger than the sum of its proper divisors (11424987).

79974853 is a wasteful number, since it uses less digits than its factorization.

79974853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11424986.

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

The square root of 79974853 is about 8942.8660394753. The cubic root of 79974853 is about 430.8417853007.

The spelling of 79974853 in words is "seventy-nine million, nine hundred seventy-four thousand, eight hundred fifty-three".