200890387 has 2 divisors, whose sum is σ = 200890388. Its totient is φ = 200890386.

The previous prime is 200890307. The next prime is 200890399. The reversal of 200890387 is 783098002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 200890387 - 2⁷ = 200890259 is a prime.

It is not a weakly prime, because it can be changed into another prime (200890307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100445193 + 100445194.

It is an arithmetic number, because the mean of its divisors is an integer number (100445194).

Almost surely, 2^200890387 is an apocalyptic number.

200890387 is a deficient number, since it is larger than the sum of its proper divisors (1).

200890387 is an equidigital number, since it uses as much as digits as its factorization.

200890387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 200890387 is about 14173.5805991288. The cubic root of 200890387 is about 585.6700987628.

The spelling of 200890387 in words is "two hundred million, eight hundred ninety thousand, three hundred eighty-seven".