78466980 has 48 divisors (see below), whose sum is σ = 220094784. Its totient is φ = 20887680.

The previous prime is 78466967. The next prime is 78466981. The reversal of 78466980 is 8966487.

It is not an unprimeable number, because it can be changed into a prime (78466981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60135 + ... + 61425.

It is an arithmetic number, because the mean of its divisors is an integer number (4585308).

Almost surely, 2^78466980 is an apocalyptic number.

It is an amenable number.

78466980 is an abundant number, since it is smaller than the sum of its proper divisors (141627804).

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

78466980 is a wasteful number, since it uses less digits than its factorization.

78466980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2316 (or 2314 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 48.

The square root of 78466980 is about 8858.1589509333. The cubic root of 78466980 is about 428.1168414806.

The spelling of 78466980 in words is "seventy-eight million, four hundred sixty-six thousand, nine hundred eighty".