79995278 has 24 divisors (see below), whose sum is σ = 134079960. Its totient is φ = 35758800.

The previous prime is 79995277. The next prime is 79995287. The reversal of 79995278 is 87259997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79995271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12053 + ... + 17471.

It is an arithmetic number, because the mean of its divisors is an integer number (5586665).

Almost surely, 2^79995278 is an apocalyptic number.

79995278 is a deficient number, since it is larger than the sum of its proper divisors (54084682).

79995278 is a wasteful number, since it uses less digits than its factorization.

79995278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5504 (or 5493 counting only the distinct ones).

The product of its digits is 2857680, while the sum is 56.

The square root of 79995278 is about 8944.0079382791. The cubic root of 79995278 is about 430.8784601391.

The spelling of 79995278 in words is "seventy-nine million, nine hundred ninety-five thousand, two hundred seventy-eight".