79227144 has 24 divisors (see below), whose sum is σ = 214573710. Its totient is φ = 26409024.

The previous prime is 79227143. The next prime is 79227151. The reversal of 79227144 is 44172297.

It can be written as a sum of positive squares in only one way, i.e., 58706244 + 20520900 = 7662^2 + 4530^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 79227099 and 79227108.

It is not an unprimeable number, because it can be changed into a prime (79227143) 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 5 ways as a sum of consecutive naturals, for example, 550117 + ... + 550260.

Almost surely, 2^79227144 is an apocalyptic number.

It is an amenable number.

79227144 is an abundant number, since it is smaller than the sum of its proper divisors (135346566).

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

79227144 is a wasteful number, since it uses less digits than its factorization.

79227144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100389 (or 1100382 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 79227144 is about 8900.9630939579. The cubic root of 79227144 is about 429.4948891331.

The spelling of 79227144 in words is "seventy-nine million, two hundred twenty-seven thousand, one hundred forty-four".