78479385 has 16 divisors (see below), whose sum is σ = 125803584. Its totient is φ = 41776832.

The previous prime is 78479377. The next prime is 78479393. The reversal of 78479385 is 58397487.

It is an interprime number because it is at equal distance from previous prime (78479377) and next prime (78479393).

It is a cyclic number.

It is not a de Polignac number, because 78479385 - 2³ = 78479377 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3799 + ... + 13091.

It is an arithmetic number, because the mean of its divisors is an integer number (7862724).

Almost surely, 2^78479385 is an apocalyptic number.

It is an amenable number.

78479385 is a deficient number, since it is larger than the sum of its proper divisors (47324199).

78479385 is a wasteful number, since it uses less digits than its factorization.

78479385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9864.

The product of its digits is 1693440, while the sum is 51.

The square root of 78479385 is about 8858.8591251921. The cubic root of 78479385 is about 428.1394009044.

The spelling of 78479385 in words is "seventy-eight million, four hundred seventy-nine thousand, three hundred eighty-five".