6984999 has 36 divisors (see below), whose sum is σ = 12021984. Its totient is φ = 3894912.

The previous prime is 6984997. The next prime is 6985001. The reversal of 6984999 is 9994896.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6984997) and next prime (6985001).

It is not a de Polignac number, because 6984999 - 2¹ = 6984997 is a prime.

It is a super-2 number, since 2×6984999² = 97580422060002, which contains 22 as substring.

6984999 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6984997) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 20559 + ... + 20895.

It is an arithmetic number, because the mean of its divisors is an integer number (333944).

Almost surely, 2^6984999 is an apocalyptic number.

6984999 is a deficient number, since it is larger than the sum of its proper divisors (5036985).

6984999 is a wasteful number, since it uses less digits than its factorization.

6984999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404 (or 394 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 54.

The square root of 6984999 is about 2642.9148680955. The cubic root of 6984999 is about 191.1563734985.

The spelling of 6984999 in words is "six million, nine hundred eighty-four thousand, nine hundred ninety-nine".