502689889 has 16 divisors (see below), whose sum is σ = 560846160. Its totient is φ = 447575040.

The previous prime is 502689871. The next prime is 502689907. The reversal of 502689889 is 988986205.

It is an interprime number because it is at equal distance from previous prime (502689871) and next prime (502689907).

It can be written as a sum of positive squares in 8 ways, for example, as 330948864 + 171741025 = 18192^2 + 13105^2 .

It is a cyclic number.

It is not a de Polignac number, because 502689889 - 2²¹ = 500592737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (502689829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42139 + ... + 52735.

It is an arithmetic number, because the mean of its divisors is an integer number (35052885).

Almost surely, 2^502689889 is an apocalyptic number.

It is an amenable number.

502689889 is a deficient number, since it is larger than the sum of its proper divisors (58156271).

502689889 is a wasteful number, since it uses less digits than its factorization.

502689889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10740.

The product of its (nonzero) digits is 2488320, while the sum is 55.

The square root of 502689889 is about 22420.7468430470. The cubic root of 502689889 is about 795.1212920958.

The spelling of 502689889 in words is "five hundred two million, six hundred eighty-nine thousand, eight hundred eighty-nine".