501889 has 2 divisors, whose sum is σ = 501890. Its totient is φ = 501888.

The previous prime is 501863. The next prime is 501911. The reversal of 501889 is 988105.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 501264 + 625 = 708^2 + 25^2 .

It is a cyclic number.

It is not a de Polignac number, because 501889 - 2¹⁵ = 469121 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 501889.

It is not a weakly prime, because it can be changed into another prime (501829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250944 + 250945.

It is an arithmetic number, because the mean of its divisors is an integer number (250945).

2⁵⁰¹⁸⁸⁹ is an apocalyptic number.

It is an amenable number.

501889 is a deficient number, since it is larger than the sum of its proper divisors (1).

501889 is an equidigital number, since it uses as much as digits as its factorization.

501889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 31.

The square root of 501889 is about 708.4412466818. The cubic root of 501889 is about 79.4698803403.

The spelling of 501889 in words is "five hundred one thousand, eight hundred eighty-nine".