78583982 has 8 divisors (see below), whose sum is σ = 119808552. Its totient is φ = 38647800.

The previous prime is 78583957. The next prime is 78583987. The reversal of 78583982 is 28938587.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 78583982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78583987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 321944 + ... + 322187.

It is an arithmetic number, because the mean of its divisors is an integer number (14976069).

Almost surely, 2^78583982 is an apocalyptic number.

78583982 is a deficient number, since it is larger than the sum of its proper divisors (41224570).

78583982 is a wasteful number, since it uses less digits than its factorization.

78583982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644194.

The product of its digits is 967680, while the sum is 50.

The square root of 78583982 is about 8864.7606848691. The cubic root of 78583982 is about 428.3295239391.

The spelling of 78583982 in words is "seventy-eight million, five hundred eighty-three thousand, nine hundred eighty-two".