79895920 has 80 divisors (see below), whose sum is σ = 211861440. Its totient is φ = 27758592.

The previous prime is 79895891. The next prime is 79895927. The reversal of 79895920 is 2959897.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79895927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15421 + ... + 19939.

It is an arithmetic number, because the mean of its divisors is an integer number (2648268).

Almost surely, 2^79895920 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 79895920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105930720).

79895920 is an abundant number, since it is smaller than the sum of its proper divisors (131965520).

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

79895920 is a wasteful number, since it uses less digits than its factorization.

79895920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4562 (or 4556 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 49.

The square root of 79895920 is about 8938.4517675043. The cubic root of 79895920 is about 430.6999956101.

The spelling of 79895920 in words is "seventy-nine million, eight hundred ninety-five thousand, nine hundred twenty".