6993231 has 24 divisors (see below), whose sum is σ = 10968624. Its totient is φ = 3951360.

The previous prime is 6993221. The next prime is 6993257. The reversal of 6993231 is 1323996.

It is not a de Polignac number, because 6993231 - 2⁶ = 6993167 is a prime.

It is a super-2 number, since 2×6993231² = 97810559638722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6993192 and 6993201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6993221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16401 + ... + 16821.

It is an arithmetic number, because the mean of its divisors is an integer number (457026).

Almost surely, 2^6993231 is an apocalyptic number.

6993231 is a deficient number, since it is larger than the sum of its proper divisors (3975393).

6993231 is a wasteful number, since it uses less digits than its factorization.

6993231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551 (or 544 counting only the distinct ones).

The product of its digits is 8748, while the sum is 33.

The square root of 6993231 is about 2644.4717809045. The cubic root of 6993231 is about 191.2314382430.

The spelling of 6993231 in words is "six million, nine hundred ninety-three thousand, two hundred thirty-one".