201990683 has 2 divisors, whose sum is σ = 201990684. Its totient is φ = 201990682.

The previous prime is 201990671. The next prime is 201990697. The reversal of 201990683 is 386099102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201990683 - 2⁴ = 201990667 is a prime.

It is not a weakly prime, because it can be changed into another prime (201990643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100995341 + 100995342.

It is an arithmetic number, because the mean of its divisors is an integer number (100995342).

Almost surely, 2^201990683 is an apocalyptic number.

201990683 is a deficient number, since it is larger than the sum of its proper divisors (1).

201990683 is an equidigital number, since it uses as much as digits as its factorization.

201990683 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 201990683 is about 14212.3426288561. The cubic root of 201990683 is about 586.7374097212.

The spelling of 201990683 in words is "two hundred one million, nine hundred ninety thousand, six hundred eighty-three".