90211003 has 2 divisors, whose sum is σ = 90211004. Its totient is φ = 90211002.

The previous prime is 90210997. The next prime is 90211039. The reversal of 90211003 is 30011209.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90211003 is a prime.

It is not a weakly prime, because it can be changed into another prime (90211073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45105501 + 45105502.

It is an arithmetic number, because the mean of its divisors is an integer number (45105502).

Almost surely, 2^90211003 is an apocalyptic number.

90211003 is a deficient number, since it is larger than the sum of its proper divisors (1).

90211003 is an equidigital number, since it uses as much as digits as its factorization.

90211003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 90211003 is about 9497.9473045495. The cubic root of 90211003 is about 448.4904197799.

The spelling of 90211003 in words is "ninety million, two hundred eleven thousand, three".