6426986 has 16 divisors (see below), whose sum is σ = 10254600. Its totient is φ = 3010560.

The previous prime is 6426983. The next prime is 6426989. The reversal of 6426986 is 6896246.

It is an interprime number because it is at equal distance from previous prime (6426983) and next prime (6426989).

It can be written as a sum of positive squares in 4 ways, for example, as 4687225 + 1739761 = 2165^2 + 1319^2 .

It is a super-2 number, since 2×6426986² = 82612298088392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6426983) 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, 14090 + ... + 14538.

Almost surely, 2^6426986 is an apocalyptic number.

6426986 is a deficient number, since it is larger than the sum of its proper divisors (3827614).

6426986 is a wasteful number, since it uses less digits than its factorization.

6426986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889.

The product of its digits is 124416, while the sum is 41.

The square root of 6426986 is about 2535.1500941759. The cubic root of 6426986 is about 185.9241414172.

The spelling of 6426986 in words is "six million, four hundred twenty-six thousand, nine hundred eighty-six".