900193 has 4 divisors (see below), whose sum is σ = 1028800. Its totient is φ = 771588.

The previous prime is 900187. The next prime is 900217. The reversal of 900193 is 391009.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 900193 - 2⁵ = 900161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (900103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64293 + ... + 64306.

It is an arithmetic number, because the mean of its divisors is an integer number (257200).

2⁹⁰⁰¹⁹³ is an apocalyptic number.

It is an amenable number.

900193 is a deficient number, since it is larger than the sum of its proper divisors (128607).

900193 is a wasteful number, since it uses less digits than its factorization.

900193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128606.

The product of its (nonzero) digits is 243, while the sum is 22.

The square root of 900193 is about 948.7850125292. The cubic root of 900193 is about 96.5558394285. Note that the first 3 decimals are identical.

The spelling of 900193 in words is "nine hundred thousand, one hundred ninety-three".