6996491 has 2 divisors, whose sum is σ = 6996492. Its totient is φ = 6996490.

The previous prime is 6996461. The next prime is 6996499. The reversal of 6996491 is 1946996.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6996491 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6996499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3498245 + 3498246.

It is an arithmetic number, because the mean of its divisors is an integer number (3498246).

Almost surely, 2^6996491 is an apocalyptic number.

6996491 is a deficient number, since it is larger than the sum of its proper divisors (1).

6996491 is an equidigital number, since it uses as much as digits as its factorization.

6996491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 104976, while the sum is 44.

The square root of 6996491 is about 2645.0880892704. The cubic root of 6996491 is about 191.2611487655.

The spelling of 6996491 in words is "six million, nine hundred ninety-six thousand, four hundred ninety-one".