79724854 has 16 divisors (see below), whose sum is σ = 136131840. Its totient is φ = 34662760.

The previous prime is 79724851. The next prime is 79724861. The reversal of 79724854 is 45842797.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79724851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78274 + ... + 79285.

It is an arithmetic number, because the mean of its divisors is an integer number (8508240).

Almost surely, 2^79724854 is an apocalyptic number.

79724854 is a deficient number, since it is larger than the sum of its proper divisors (56406986).

79724854 is a wasteful number, since it uses less digits than its factorization.

79724854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157595.

The product of its digits is 564480, while the sum is 46.

The square root of 79724854 is about 8928.8775330385. The cubic root of 79724854 is about 430.3923838555.

It can be divided in two parts, 797 and 24854, that added together give a triangular number (25651 = T₂₂₆).

The spelling of 79724854 in words is "seventy-nine million, seven hundred twenty-four thousand, eight hundred fifty-four".