90404403 has 8 divisors (see below), whose sum is σ = 120632016. Its totient is φ = 60223200.

The previous prime is 90404399. The next prime is 90404411. The reversal of 90404403 is 30440409.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 90404403 - 2² = 90404399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90804403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6768 + ... + 15053.

It is an arithmetic number, because the mean of its divisors is an integer number (15079002).

Almost surely, 2^90404403 is an apocalyptic number.

90404403 is a deficient number, since it is larger than the sum of its proper divisors (30227613).

90404403 is a wasteful number, since it uses less digits than its factorization.

90404403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23205.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 90404403 is about 9508.1230008872. The cubic root of 90404403 is about 448.8106916359.

The spelling of 90404403 in words is "ninety million, four hundred four thousand, four hundred three".