90939203 has 2 divisors, whose sum is σ = 90939204. Its totient is φ = 90939202.

The previous prime is 90939169. The next prime is 90939223. The reversal of 90939203 is 30293909.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90939203 - 2⁶ = 90939139 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (90939223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45469601 + 45469602.

It is an arithmetic number, because the mean of its divisors is an integer number (45469602).

Almost surely, 2^90939203 is an apocalyptic number.

90939203 is a deficient number, since it is larger than the sum of its proper divisors (1).

90939203 is an equidigital number, since it uses as much as digits as its factorization.

90939203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13122, while the sum is 35.

The square root of 90939203 is about 9536.2048530849. The cubic root of 90939203 is about 449.6939532204.

The spelling of 90939203 in words is "ninety million, nine hundred thirty-nine thousand, two hundred three".