79172016 has 160 divisors (see below), whose sum is σ = 263602176. Its totient is φ = 19872000.

The previous prime is 79172011. The next prime is 79172021. The reversal of 79172016 is 61027197.

It is an interprime number because it is at equal distance from previous prime (79172011) and next prime (79172021).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (79172011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 114231 + ... + 114921.

Almost surely, 2^79172016 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 79172016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131801088).

79172016 is an abundant number, since it is smaller than the sum of its proper divisors (184430160).

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

79172016 is a wasteful number, since it uses less digits than its factorization.

79172016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751 (or 745 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 33.

The square root of 79172016 is about 8897.8658115303. The cubic root of 79172016 is about 429.3952486695.

The spelling of 79172016 in words is "seventy-nine million, one hundred seventy-two thousand, sixteen".