90975903 has 8 divisors (see below), whose sum is σ = 121430016. Its totient is φ = 60586200.

The previous prime is 90975901. The next prime is 90975919. The reversal of 90975903 is 30957909.

It is a happy number.

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

It is not a de Polignac number, because 90975903 - 2¹ = 90975901 is a prime.

It is a super-2 number, since 2×90975903² = 16553229853330818, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90975901) 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, 12703 + ... + 18528.

It is an arithmetic number, because the mean of its divisors is an integer number (15178752).

Almost surely, 2^90975903 is an apocalyptic number.

90975903 is a deficient number, since it is larger than the sum of its proper divisors (30454113).

90975903 is a wasteful number, since it uses less digits than its factorization.

90975903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32205.

The product of its (nonzero) digits is 76545, while the sum is 42.

The square root of 90975903 is about 9538.1289045598. The cubic root of 90975903 is about 449.7544388633.

The spelling of 90975903 in words is "ninety million, nine hundred seventy-five thousand, nine hundred three".