78982580 has 24 divisors (see below), whose sum is σ = 167062560. Its totient is φ = 31364640.

The previous prime is 78982577. The next prime is 78982583. The reversal of 78982580 is 8528987.

It is an interprime number because it is at equal distance from previous prime (78982577) and next prime (78982583).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78982583) 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, 11426 + ... + 16985.

It is an arithmetic number, because the mean of its divisors is an integer number (6960940).

Almost surely, 2^78982580 is an apocalyptic number.

It is an amenable number.

78982580 is an abundant number, since it is smaller than the sum of its proper divisors (88079980).

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

78982580 is a wasteful number, since it uses less digits than its factorization.

78982580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28559 (or 28557 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 47.

The square root of 78982580 is about 8887.2144117265. The cubic root of 78982580 is about 429.0525018018.

The spelling of 78982580 in words is "seventy-eight million, nine hundred eighty-two thousand, five hundred eighty".