90422903 has 4 divisors (see below), whose sum is σ = 90451368. Its totient is φ = 90394440.

The previous prime is 90422897. The next prime is 90422909. The reversal of 90422903 is 30922409.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30922409 = 7 ⋅4417487.

It is an interprime number because it is at equal distance from previous prime (90422897) and next prime (90422909).

It is a cyclic number.

It is not a de Polignac number, because 90422903 - 2⁴ = 90422887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90422909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8768 + ... + 16053.

It is an arithmetic number, because the mean of its divisors is an integer number (22612842).

Almost surely, 2^90422903 is an apocalyptic number.

90422903 is a deficient number, since it is larger than the sum of its proper divisors (28465).

90422903 is a wasteful number, since it uses less digits than its factorization.

90422903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28464.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 90422903 is about 9509.0958034926. The cubic root of 90422903 is about 448.8413038304.

The spelling of 90422903 in words is "ninety million, four hundred twenty-two thousand, nine hundred three".