16900691 has 2 divisors, whose sum is σ = 16900692. Its totient is φ = 16900690.

The previous prime is 16900679. The next prime is 16900739. The reversal of 16900691 is 19600961.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16900691 is a prime.

It is a Chen prime.

16900691 is a strobogrammatic number because it is the same when read upside-down.

It is not a weakly prime, because it can be changed into another prime (16900621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8450345 + 8450346.

It is an arithmetic number, because the mean of its divisors is an integer number (8450346).

Almost surely, 2^16900691 is an apocalyptic number.

16900691 is a deficient number, since it is larger than the sum of its proper divisors (1).

16900691 is an equidigital number, since it uses as much as digits as its factorization.

16900691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 32.

The square root of 16900691 is about 4111.0450009699. The cubic root of 16900691 is about 256.6264919035.

The spelling of 16900691 in words is "sixteen million, nine hundred thousand, six hundred ninety-one".