78679104 has 84 divisors (see below), whose sum is σ = 242187984. Its totient is φ = 22477056.

The previous prime is 78679099. The next prime is 78679109. The reversal of 78679104 is 40197687.

It is an interprime number because it is at equal distance from previous prime (78679099) and next prime (78679109).

It is a tau number, because it is divible by the number of its divisors (84).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (78679109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5227 + ... + 13589.

Almost surely, 2^78679104 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 78679104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121093992).

78679104 is an abundant number, since it is smaller than the sum of its proper divisors (163508880).

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

78679104 is a wasteful number, since it uses less digits than its factorization.

78679104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8392 (or 8375 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 78679104 is about 8870.1242381378. The cubic root of 78679104 is about 428.5022781129.

The spelling of 78679104 in words is "seventy-eight million, six hundred seventy-nine thousand, one hundred four".