539767989 has 16 divisors (see below), whose sum is σ = 802085440. Its totient is φ = 358752240.

The previous prime is 539767961. The next prime is 539767999. The reversal of 539767989 is 989767935.

539767989 is a `hidden beast` number, since 539 + 7 + 6 + 7 + 98 + 9 = 666.

It is not a de Polignac number, because 539767989 - 2⁵ = 539767957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (539767909) 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, 21262 + ... + 39135.

It is an arithmetic number, because the mean of its divisors is an integer number (50130340).

Almost surely, 2^539767989 is an apocalyptic number.

It is an amenable number.

539767989 is a deficient number, since it is larger than the sum of its proper divisors (262317451).

539767989 is a wasteful number, since it uses less digits than its factorization.

539767989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60737 (or 60731 counting only the distinct ones).

The product of its digits is 25719120, while the sum is 63.

The square root of 539767989 is about 23232.9074590332. The cubic root of 539767989 is about 814.2086433189.

The spelling of 539767989 in words is "five hundred thirty-nine million, seven hundred sixty-seven thousand, nine hundred eighty-nine".