79874280 has 48 divisors (see below), whose sum is σ = 259592580. Its totient is φ = 21299712.

The previous prime is 79874257. The next prime is 79874329. The reversal of 79874280 is 8247897.

It can be written as a sum of positive squares in 2 ways, for example, as 67469796 + 12404484 = 8214^2 + 3522^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 110577 + ... + 111296.

Almost surely, 2^79874280 is an apocalyptic number.

It is an amenable number.

79874280 is an abundant number, since it is smaller than the sum of its proper divisors (179718300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79874280 is a wasteful number, since it uses less digits than its factorization.

79874280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221890 (or 221883 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 79874280 is about 8937.2411850638. The cubic root of 79874280 is about 430.6611067261.

It can be divided in two parts, 798 and 74280, that added together give a triangular number (75078 = T₃₈₇).

The spelling of 79874280 in words is "seventy-nine million, eight hundred seventy-four thousand, two hundred eighty".