6968981 has 2 divisors, whose sum is σ = 6968982. Its totient is φ = 6968980.

The previous prime is 6968957. The next prime is 6968989. The reversal of 6968981 is 1898696.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5428900 + 1540081 = 2330^2 + 1241^2 .

It is a cyclic number.

It is not a de Polignac number, because 6968981 - 2²² = 2774677 is a prime.

It is a super-2 number, since 2×6968981² = 97133392356722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6968989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3484490 + 3484491.

It is an arithmetic number, because the mean of its divisors is an integer number (3484491).

Almost surely, 2^6968981 is an apocalyptic number.

It is an amenable number.

6968981 is a deficient number, since it is larger than the sum of its proper divisors (1).

6968981 is an equidigital number, since it uses as much as digits as its factorization.

6968981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 47.

The square root of 6968981 is about 2639.8827625484. The cubic root of 6968981 is about 191.0101417273.

The spelling of 6968981 in words is "six million, nine hundred sixty-eight thousand, nine hundred eighty-one".