90844403 has 8 divisors (see below), whose sum is σ = 97960800. Its totient is φ = 83746368.

The previous prime is 90844399. The next prime is 90844409. The reversal of 90844403 is 30444809.

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

It is a cyclic number.

It is not a de Polignac number, because 90844403 - 2² = 90844399 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90844403.

It is not an unprimeable number, because it can be changed into a prime (90844409) 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, 6743 + ... + 15071.

It is an arithmetic number, because the mean of its divisors is an integer number (12245100).

Almost surely, 2^90844403 is an apocalyptic number.

90844403 is a deficient number, since it is larger than the sum of its proper divisors (7116397).

90844403 is a wasteful number, since it uses less digits than its factorization.

90844403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9181.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 90844403 is about 9531.2330262144. The cubic root of 90844403 is about 449.5376370313.

The spelling of 90844403 in words is "ninety million, eight hundred forty-four thousand, four hundred three".