79131008 has 64 divisors (see below), whose sum is σ = 176109120. Its totient is φ = 35105280.

The previous prime is 79131007. The next prime is 79131011. The reversal of 79131008 is 80013197.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79131001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59891 + ... + 61197.

It is an arithmetic number, because the mean of its divisors is an integer number (2751705).

Almost surely, 2^79131008 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 79131008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88054560).

79131008 is an abundant number, since it is smaller than the sum of its proper divisors (96978112).

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

79131008 is a wasteful number, since it uses less digits than its factorization.

79131008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1375 (or 1363 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 79131008 is about 8895.5611402542. The cubic root of 79131008 is about 429.3210992317.

The spelling of 79131008 in words is "seventy-nine million, one hundred thirty-one thousand, eight".