6696491 has 2 divisors, whose sum is σ = 6696492. Its totient is φ = 6696490.

The previous prime is 6696479. The next prime is 6696517. The reversal of 6696491 is 1946966.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6696491 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (6696451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3348245 + 3348246.

It is an arithmetic number, because the mean of its divisors is an integer number (3348246).

Almost surely, 2^6696491 is an apocalyptic number.

6696491 is a deficient number, since it is larger than the sum of its proper divisors (1).

6696491 is an equidigital number, since it uses as much as digits as its factorization.

6696491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 41.

The square root of 6696491 is about 2587.7579098517. The cubic root of 6696491 is about 188.4874460139.

The spelling of 6696491 in words is "six million, six hundred ninety-six thousand, four hundred ninety-one".