90427903 has 4 divisors (see below), whose sum is σ = 91572640. Its totient is φ = 89283168.

The previous prime is 90427901. The next prime is 90427907. The reversal of 90427903 is 30972409.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 90427903 - 2¹ = 90427901 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 (90427901) 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, 572250 + ... + 572407.

It is an arithmetic number, because the mean of its divisors is an integer number (22893160).

Almost surely, 2^90427903 is an apocalyptic number.

90427903 is a deficient number, since it is larger than the sum of its proper divisors (1144737).

90427903 is a wasteful number, since it uses less digits than its factorization.

90427903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1144736.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 90427903 is about 9509.3587060327. The cubic root of 90427903 is about 448.8495766797.

The spelling of 90427903 in words is "ninety million, four hundred twenty-seven thousand, nine hundred three".