78894980 has 24 divisors (see below), whose sum is σ = 166053888. Its totient is φ = 31486688.

The previous prime is 78894971. The next prime is 78894983. The reversal of 78894980 is 8949887.

It is not an unprimeable number, because it can be changed into a prime (78894983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5117 + ... + 13563.

It is an arithmetic number, because the mean of its divisors is an integer number (6918912).

Almost surely, 2^78894980 is an apocalyptic number.

It is an amenable number.

78894980 is an abundant number, since it is smaller than the sum of its proper divisors (87158908).

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

78894980 is a wasteful number, since it uses less digits than its factorization.

78894980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8923 (or 8921 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 53.

The square root of 78894980 is about 8882.2846160208. The cubic root of 78894980 is about 428.8938216516.

The spelling of 78894980 in words is "seventy-eight million, eight hundred ninety-four thousand, nine hundred eighty".