78467904 has 84 divisors (see below), whose sum is σ = 234732576. Its totient is φ = 25014528.

The previous prime is 78467897. The next prime is 78467911. The reversal of 78467904 is 40976487.

It is an interprime number because it is at equal distance from previous prime (78467897) and next prime (78467911).

It is a self number, because there is not a number n which added to its sum of digits gives 78467904.

It is a congruent number.

It is an unprimeable number.

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, 10287 + ... + 16209.

Almost surely, 2^78467904 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 78467904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117366288).

78467904 is an abundant number, since it is smaller than the sum of its proper divisors (156264672).

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

78467904 is a wasteful number, since it uses less digits than its factorization.

78467904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5964 (or 5951 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 78467904 is about 8858.2111060868. The cubic root of 78467904 is about 428.1185219259.

The spelling of 78467904 in words is "seventy-eight million, four hundred sixty-seven thousand, nine hundred four".