6961231 has 2 divisors, whose sum is σ = 6961232. Its totient is φ = 6961230.

The previous prime is 6961187. The next prime is 6961271. The reversal of 6961231 is 1321696.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6961231 - 2⁹ = 6960719 is a prime.

It is a super-2 number, since 2×6961231² = 96917474070722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6961231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6961271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3480615 + 3480616.

It is an arithmetic number, because the mean of its divisors is an integer number (3480616).

Almost surely, 2^6961231 is an apocalyptic number.

6961231 is a deficient number, since it is larger than the sum of its proper divisors (1).

6961231 is an equidigital number, since it uses as much as digits as its factorization.

6961231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 28.

The square root of 6961231 is about 2638.4144860124. The cubic root of 6961231 is about 190.9393098663.

The spelling of 6961231 in words is "six million, nine hundred sixty-one thousand, two hundred thirty-one".