7913982 has 8 divisors (see below), whose sum is σ = 15827976. Its totient is φ = 2637992.

The previous prime is 7913981. The next prime is 7913989. The reversal of 7913982 is 2893197.

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

7913982 is an admirable number.

It is a super-2 number, since 2×7913982² = 125262222192648, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7913982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7913981) 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, 659493 + ... + 659504.

It is an arithmetic number, because the mean of its divisors is an integer number (1978497).

Almost surely, 2^7913982 is an apocalyptic number.

7913982 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

7913982 is a wasteful number, since it uses less digits than its factorization.

7913982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1319002.

The product of its digits is 27216, while the sum is 39.

The square root of 7913982 is about 2813.1800511165. The cubic root of 7913982 is about 199.2805987452.

The spelling of 7913982 in words is "seven million, nine hundred thirteen thousand, nine hundred eighty-two".