79399544 has 64 divisors (see below), whose sum is σ = 176117760. Its totient is φ = 32855040.

The previous prime is 79399517. The next prime is 79399549. The reversal of 79399544 is 44599397.

It is a junction number, because it is equal to n+sod(n) for n = 79399492 and 79399501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79399549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 255149 + ... + 255459.

It is an arithmetic number, because the mean of its divisors is an integer number (2751840).

Almost surely, 2^79399544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79399544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88058880).

79399544 is an abundant number, since it is smaller than the sum of its proper divisors (96718216).

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

79399544 is a wasteful number, since it uses less digits than its factorization.

79399544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468 (or 464 counting only the distinct ones).

The product of its digits is 1224720, while the sum is 50.

The square root of 79399544 is about 8910.6421766335. The cubic root of 79399544 is about 429.8061935346.

The spelling of 79399544 in words is "seventy-nine million, three hundred ninety-nine thousand, five hundred forty-four".