90203303 has 2 divisors, whose sum is σ = 90203304. Its totient is φ = 90203302.

The previous prime is 90203287. The next prime is 90203327. The reversal of 90203303 is 30330209.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90203303 - 2⁴ = 90203287 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90203353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45101651 + 45101652.

It is an arithmetic number, because the mean of its divisors is an integer number (45101652).

Almost surely, 2^90203303 is an apocalyptic number.

90203303 is a deficient number, since it is larger than the sum of its proper divisors (1).

90203303 is an equidigital number, since it uses as much as digits as its factorization.

90203303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 20.

The square root of 90203303 is about 9497.5419451561. The cubic root of 90203303 is about 448.4776590509.

The spelling of 90203303 in words is "ninety million, two hundred three thousand, three hundred three".