79271836 has 48 divisors (see below), whose sum is σ = 164749312. Its totient is φ = 32659200.

The previous prime is 79271831. The next prime is 79271837. The reversal of 79271836 is 63817297.

It is a happy number.

Its product of digits (127008) is a multiple of the sum of its prime divisors (648).

It is a junction number, because it is equal to n+sod(n) for n = 79271792 and 79271801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79271831) 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, 235060 + ... + 235396.

Almost surely, 2^79271836 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 79271836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82374656).

79271836 is an abundant number, since it is smaller than the sum of its proper divisors (85477476).

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

79271836 is a wasteful number, since it uses less digits than its factorization.

79271836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650 (or 648 counting only the distinct ones).

The product of its digits is 127008, while the sum is 43.

The square root of 79271836 is about 8903.4732548596. The cubic root of 79271836 is about 429.5756332504.

The spelling of 79271836 in words is "seventy-nine million, two hundred seventy-one thousand, eight hundred thirty-six".