7969986 has 12 divisors (see below), whose sum is σ = 17268342. Its totient is φ = 2656656.

The previous prime is 7969979. The next prime is 7969993. The reversal of 7969986 is 6899697.

7969986 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (7969979) and next prime (7969993).

It can be written as a sum of positive squares in only one way, i.e., 7700625 + 269361 = 2775^2 + 519^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 221371 + ... + 221406.

Almost surely, 2^7969986 is an apocalyptic number.

7969986 is an abundant number, since it is smaller than the sum of its proper divisors (9298356).

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

7969986 is a wasteful number, since it uses less digits than its factorization.

7969986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442785 (or 442782 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 54.

The square root of 7969986 is about 2823.1163631703. The cubic root of 7969986 is about 199.7495698880.

The spelling of 7969986 in words is "seven million, nine hundred sixty-nine thousand, nine hundred eighty-six".