6739986 has 16 divisors (see below), whose sum is σ = 14705568. Its totient is φ = 2042400.

The previous prime is 6739981. The next prime is 6739987. The reversal of 6739986 is 6899376.

It is a happy number.

It is a super-2 number, since 2×6739986² = 90854822560392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6739981) 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, 50995 + ... + 51126.

It is an arithmetic number, because the mean of its divisors is an integer number (919098).

Almost surely, 2^6739986 is an apocalyptic number.

6739986 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

6739986 is an abundant number, since it is smaller than the sum of its proper divisors (7965582).

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

6739986 is a wasteful number, since it uses less digits than its factorization.

6739986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102137.

The product of its digits is 489888, while the sum is 48.

The square root of 6739986 is about 2596.1483008488. The cubic root of 6739986 is about 188.8946530857.

The spelling of 6739986 in words is "six million, seven hundred thirty-nine thousand, nine hundred eighty-six".