902389 has 2 divisors, whose sum is σ = 902390. Its totient is φ = 902388.

The previous prime is 902357. The next prime is 902401. The reversal of 902389 is 983209.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 562500 + 339889 = 750^2 + 583^2 .

It is an emirp because it is prime and its reverse (983209) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 902389 - 2⁵ = 902357 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 902389.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (902089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 451194 + 451195.

It is an arithmetic number, because the mean of its divisors is an integer number (451195).

2⁹⁰²³⁸⁹ is an apocalyptic number.

It is an amenable number.

902389 is a deficient number, since it is larger than the sum of its proper divisors (1).

902389 is an equidigital number, since it uses as much as digits as its factorization.

902389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 902389 is about 949.9415771509. The cubic root of 902389 is about 96.6342909150.

The spelling of 902389 in words is "nine hundred two thousand, three hundred eighty-nine".