90002403 has 18 divisors (see below), whose sum is σ = 138104564. Its totient is φ = 56470464.

The previous prime is 90002401. The next prime is 90002417. The reversal of 90002403 is 30420009.

It is not a de Polignac number, because 90002403 - 2¹ = 90002401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90002401) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 14701 + ... + 19902.

Almost surely, 2^90002403 is an apocalyptic number.

90002403 is a deficient number, since it is larger than the sum of its proper divisors (48102161).

90002403 is a wasteful number, since it uses less digits than its factorization.

90002403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34643 (or 34623 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 90002403 is about 9486.9596288801. The cubic root of 90002403 is about 448.1444630704.

The spelling of 90002403 in words is "ninety million, two thousand, four hundred three".