900389 has 8 divisors (see below), whose sum is σ = 1034880. Its totient is φ = 767376.

The previous prime is 900349. The next prime is 900397. The reversal of 900389 is 983009.

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 900389 - 2¹² = 896293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (900329) 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, 1832 + ... + 2270.

It is an arithmetic number, because the mean of its divisors is an integer number (129360).

2⁹⁰⁰³⁸⁹ is an apocalyptic number.

It is an amenable number.

900389 is a deficient number, since it is larger than the sum of its proper divisors (134491).

900389 is a wasteful number, since it uses less digits than its factorization.

900389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 900389 is about 948.8882969033. Note that the first 3 decimals coincide. The cubic root of 900389 is about 96.5628466559.

The spelling of 900389 in words is "nine hundred thousand, three hundred eighty-nine".