538969599 has 32 divisors (see below), whose sum is σ = 960576000. Its totient is φ = 291771072.

The previous prime is 538969579. The next prime is 538969601. The reversal of 538969599 is 995969835.

538969599 is a `hidden beast` number, since 5 + 38 + 9 + 6 + 9 + 599 = 666.

It is not a de Polignac number, because 538969599 - 2⁵ = 538969567 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538969579) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71454 + ... + 78635.

It is an arithmetic number, because the mean of its divisors is an integer number (30018000).

Almost surely, 2^538969599 is an apocalyptic number.

538969599 is a deficient number, since it is larger than the sum of its proper divisors (421606401).

538969599 is a wasteful number, since it uses less digits than its factorization.

538969599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150124 (or 150118 counting only the distinct ones).

The product of its digits is 23619600, while the sum is 63.

The square root of 538969599 is about 23215.7187913706. The cubic root of 538969599 is about 813.8070035882.

The spelling of 538969599 in words is "five hundred thirty-eight million, nine hundred sixty-nine thousand, five hundred ninety-nine".