6988031 has 4 divisors (see below), whose sum is σ = 6997200. Its totient is φ = 6978864.

The previous prime is 6987983. The next prime is 6988039. The reversal of 6988031 is 1308896.

6988031 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6988031 - 2¹⁴ = 6971647 is a prime.

It is a super-2 number, since 2×6988031² = 97665154513922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6987982 and 6988000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6988039) 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, 3326 + ... + 5003.

It is an arithmetic number, because the mean of its divisors is an integer number (1749300).

Almost surely, 2^6988031 is an apocalyptic number.

6988031 is a deficient number, since it is larger than the sum of its proper divisors (9169).

6988031 is an equidigital number, since it uses as much as digits as its factorization.

6988031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9168.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 6988031 is about 2643.4884149548. The cubic root of 6988031 is about 191.1840281092.

The spelling of 6988031 in words is "six million, nine hundred eighty-eight thousand, thirty-one".