200902 has 8 divisors (see below), whose sum is σ = 324576. Its totient is φ = 92712.

The previous prime is 200899. The next prime is 200903. The reversal of 200902 is 209002.

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

It is a super-2 number, since 2×200902² = 80723227208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3838 + ... + 3889.

It is an arithmetic number, because the mean of its divisors is an integer number (40572).

2²⁰⁰⁹⁰² is an apocalyptic number.

200902 is a deficient number, since it is larger than the sum of its proper divisors (123674).

200902 is a wasteful number, since it uses less digits than its factorization.

200902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7742.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 200902 is about 448.2209276685. The cubic root of 200902 is about 58.5681383948.

Adding to 200902 its reverse (209002), we get a palindrome (409904).

Subtracting 200902 from its reverse (209002), we obtain a square (8100 = 90²).

The spelling of 200902 in words is "two hundred thousand, nine hundred two".