6739988 has 12 divisors (see below), whose sum is σ = 12046272. Its totient is φ = 3298200.

The previous prime is 6739987. The next prime is 6740021. The reversal of 6739988 is 8899376.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 17738 + ... + 18113.

It is an arithmetic number, because the mean of its divisors is an integer number (1003856).

Almost surely, 2^6739988 is an apocalyptic number.

It is an amenable number.

6739988 is a deficient number, since it is larger than the sum of its proper divisors (5306284).

6739988 is a wasteful number, since it uses less digits than its factorization.

6739988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35902 (or 35900 counting only the distinct ones).

The product of its digits is 653184, while the sum is 50.

The square root of 6739988 is about 2596.1486860348. The cubic root of 6739988 is about 188.8946717696.

The spelling of 6739988 in words is "six million, seven hundred thirty-nine thousand, nine hundred eighty-eight".