79975548 has 54 divisors (see below), whose sum is σ = 214779656. Its totient is φ = 25087104.

The previous prime is 79975547. The next prime is 79975549. The reversal of 79975548 is 84557997.

79975548 is a `hidden beast` number, since 7 + 9 + 97 + 5 + 548 = 666.

It is an interprime number because it is at equal distance from previous prime (79975547) and next prime (79975549).

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 79975494 and 79975503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79975547) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 6561 + ... + 14247.

Almost surely, 2^79975548 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 79975548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107389828).

79975548 is an abundant number, since it is smaller than the sum of its proper divisors (134804108).

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

79975548 is a wasteful number, since it uses less digits than its factorization.

79975548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7731 (or 7709 counting only the distinct ones).

The product of its digits is 3175200, while the sum is 54.

The square root of 79975548 is about 8942.9048971797. The cubic root of 79975548 is about 430.8430333354.

The spelling of 79975548 in words is "seventy-nine million, nine hundred seventy-five thousand, five hundred forty-eight".