78611079 has 8 divisors (see below), whose sum is σ = 109372032. Its totient is φ = 50128760.

The previous prime is 78611047. The next prime is 78611107. The reversal of 78611079 is 97011687.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78611079 - 2⁵ = 78611047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78611279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 569577 + ... + 569714.

It is an arithmetic number, because the mean of its divisors is an integer number (13671504).

Almost surely, 2^78611079 is an apocalyptic number.

78611079 is a deficient number, since it is larger than the sum of its proper divisors (30760953).

78611079 is a wasteful number, since it uses less digits than its factorization.

78611079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139317.

The product of its (nonzero) digits is 21168, while the sum is 39.

The square root of 78611079 is about 8866.2889079930. The cubic root of 78611079 is about 428.3787498799.

The spelling of 78611079 in words is "seventy-eight million, six hundred eleven thousand, seventy-nine".