6739985 has 8 divisors (see below), whose sum is σ = 9243456. Its totient is φ = 4621680.

The previous prime is 6739981. The next prime is 6739987. The reversal of 6739985 is 5899376.

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

It is not a de Polignac number, because 6739985 - 2² = 6739981 is a prime.

It is a d-powerful number, because it can be written as 6 + 7⁴ + 3⁵ + 9³ + 9⁷ + 8³ + 5⁹ .

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 96251 + ... + 96320.

It is an arithmetic number, because the mean of its divisors is an integer number (1155432).

Almost surely, 2^6739985 is an apocalyptic number.

It is an amenable number.

6739985 is a deficient number, since it is larger than the sum of its proper divisors (2503471).

6739985 is a wasteful number, since it uses less digits than its factorization.

6739985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192583.

The product of its digits is 408240, while the sum is 47.

The square root of 6739985 is about 2596.1481082558. The cubic root of 6739985 is about 188.8946437437.

The spelling of 6739985 in words is "six million, seven hundred thirty-nine thousand, nine hundred eighty-five".