79575540 has 48 divisors (see below), whose sum is σ = 243069120. Its totient is φ = 19290880.

The previous prime is 79575539. The next prime is 79575541. The reversal of 79575540 is 4557597.

It is an interprime number because it is at equal distance from previous prime (79575539) and next prime (79575541).

It is a junction number, because it is equal to n+sod(n) for n = 79575492 and 79575501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79575541) 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, 59625 + ... + 60944.

It is an arithmetic number, because the mean of its divisors is an integer number (5063940).

Almost surely, 2^79575540 is an apocalyptic number.

It is an amenable number.

79575540 is an abundant number, since it is smaller than the sum of its proper divisors (163493580).

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

79575540 is a wasteful number, since it uses less digits than its factorization.

79575540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120592 (or 120590 counting only the distinct ones).

The product of its (nonzero) digits is 220500, while the sum is 42.

The square root of 79575540 is about 8920.5123171262. The cubic root of 79575540 is about 430.1235267968.

The spelling of 79575540 in words is "seventy-nine million, five hundred seventy-five thousand, five hundred forty".