6984939 has 24 divisors (see below), whose sum is σ = 10540800. Its totient is φ = 4104672.

The previous prime is 6984937. The next prime is 6984941. The reversal of 6984939 is 9394896.

6984939 = 727² + 728² + ... + 739².

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6984937) and next prime (6984941).

It is not a de Polignac number, because 6984939 - 2¹ = 6984937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6984931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11362 + ... + 11960.

It is an arithmetic number, because the mean of its divisors is an integer number (439200).

Almost surely, 2^6984939 is an apocalyptic number.

6984939 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

6984939 is a deficient number, since it is larger than the sum of its proper divisors (3555861).

6984939 is a wasteful number, since it uses less digits than its factorization.

6984939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651 (or 638 counting only the distinct ones).

The product of its digits is 419904, while the sum is 48.

The square root of 6984939 is about 2642.9035169677. The cubic root of 6984939 is about 191.1558261629.

The spelling of 6984939 in words is "six million, nine hundred eighty-four thousand, nine hundred thirty-nine".