79479278 has 16 divisors (see below), whose sum is σ = 120975120. Its totient is φ = 39158016.

The previous prime is 79479271. The next prime is 79479287. The reversal of 79479278 is 87297497.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79479271) 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, 51425 + ... + 52947.

It is an arithmetic number, because the mean of its divisors is an integer number (7560945).

Almost surely, 2^79479278 is an apocalyptic number.

79479278 is a deficient number, since it is larger than the sum of its proper divisors (41495842).

79479278 is a wasteful number, since it uses less digits than its factorization.

79479278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1891.

The product of its digits is 1778112, while the sum is 53.

The square root of 79479278 is about 8915.1151422738. The cubic root of 79479278 is about 429.9500176265.

The spelling of 79479278 in words is "seventy-nine million, four hundred seventy-nine thousand, two hundred seventy-eight".