900902 has 4 divisors (see below), whose sum is σ = 1351356. Its totient is φ = 450450.

The previous prime is 900869. The next prime is 900917. The reversal of 900902 is 209009.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 209009 = 47 ⋅4447.

It is a congruent number.

It is an unprimeable number.

900902 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225224 + ... + 225227.

It is an arithmetic number, because the mean of its divisors is an integer number (337839).

2⁹⁰⁰⁹⁰² is an apocalyptic number.

900902 is a deficient number, since it is larger than the sum of its proper divisors (450454).

900902 is a wasteful number, since it uses less digits than its factorization.

900902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450453.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 900902 is about 949.1585747387. The cubic root of 900902 is about 96.5811821884.

The spelling of 900902 in words is "nine hundred thousand, nine hundred two".