79071228 has 36 divisors (see below), whose sum is σ = 207279800. Its totient is φ = 26356752.

The previous prime is 79071221. The next prime is 79071229. The reversal of 79071228 is 82217097.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×79071228³ (a number of 25 digits) contains 333 as substring.

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 = 79071192 and 79071201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79071221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39703 + ... + 41646.

Almost surely, 2^79071228 is an apocalyptic number.

It is an amenable number.

79071228 is an abundant number, since it is smaller than the sum of its proper divisors (128208572).

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

79071228 is a wasteful number, since it uses less digits than its factorization.

79071228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81368 (or 81354 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 79071228 is about 8892.2004026000. The cubic root of 79071228 is about 429.2129609197.

The spelling of 79071228 in words is "seventy-nine million, seventy-one thousand, two hundred twenty-eight".