200890691 has 2 divisors, whose sum is σ = 200890692. Its totient is φ = 200890690.

The previous prime is 200890637. The next prime is 200890721. The reversal of 200890691 is 196098002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 200890691 - 2¹⁴ = 200874307 is a prime.

It is not a weakly prime, because it can be changed into another prime (200890621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100445345 + 100445346.

It is an arithmetic number, because the mean of its divisors is an integer number (100445346).

Almost surely, 2^200890691 is an apocalyptic number.

200890691 is a deficient number, since it is larger than the sum of its proper divisors (1).

200890691 is an equidigital number, since it uses as much as digits as its factorization.

200890691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 200890691 is about 14173.5913233026. The cubic root of 200890691 is about 585.6703941870.

The spelling of 200890691 in words is "two hundred million, eight hundred ninety thousand, six hundred ninety-one".