79047144 has 256 divisors, whose sum is σ = 269568000. Its totient is φ = 21150720.

The previous prime is 79047121. The next prime is 79047149. The reversal of 79047144 is 44174097.

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 = 79047099 and 79047108.

It is not an unprimeable number, because it can be changed into a prime (79047149) 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 63 ways as a sum of consecutive naturals, for example, 767397 + ... + 767499.

It is an arithmetic number, because the mean of its divisors is an integer number (1053000).

Almost surely, 2^79047144 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 79047144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134784000).

79047144 is an abundant number, since it is smaller than the sum of its proper divisors (190520856).

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

79047144 is a wasteful number, since it uses less digits than its factorization.

79047144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165 (or 155 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 79047144 is about 8890.8460789736. The cubic root of 79047144 is about 429.1693790551.

The spelling of 79047144 in words is "seventy-nine million, forty-seven thousand, one hundred forty-four".