79515072 has 336 divisors, whose sum is σ = 295119552. Its totient is φ = 19906560.

The previous prime is 79515047. The next prime is 79515077. The reversal of 79515072 is 27051597.

79515072 is a `hidden beast` number, since 79 + 515 + 0 + 72 = 666.

It is a tau number, because it is divible by the number of its divisors (336).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79515077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1939372 + ... + 1939412.

It is an arithmetic number, because the mean of its divisors is an integer number (878332).

Almost surely, 2^79515072 is an apocalyptic number.

79515072 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79515072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147559776).

79515072 is an abundant number, since it is smaller than the sum of its proper divisors (215604480).

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

79515072 is a wasteful number, since it uses less digits than its factorization.

79515072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116 (or 103 counting only the distinct ones).

The product of its (nonzero) digits is 22050, while the sum is 36.

The square root of 79515072 is about 8917.1224057989. The cubic root of 79515072 is about 430.0145515177.

The spelling of 79515072 in words is "seventy-nine million, five hundred fifteen thousand, seventy-two".