78894828 has 18 divisors (see below), whose sum is σ = 199428684. Its totient is φ = 26298264.

The previous prime is 78894779. The next prime is 78894839. The reversal of 78894828 is 82849887.

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1095726 + ... + 1095797.

Almost surely, 2^78894828 is an apocalyptic number.

It is an amenable number.

78894828 is an abundant number, since it is smaller than the sum of its proper divisors (120533856).

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

78894828 is a wasteful number, since it uses less digits than its factorization.

78894828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2191533 (or 2191528 counting only the distinct ones).

The product of its digits is 2064384, while the sum is 54.

The square root of 78894828 is about 8882.2760596595. The cubic root of 78894828 is about 428.8935462142.

The spelling of 78894828 in words is "seventy-eight million, eight hundred ninety-four thousand, eight hundred twenty-eight".