539664 has 20 divisors (see below), whose sum is σ = 1394256. Its totient is φ = 179872.

The previous prime is 539663. The next prime is 539677. The reversal of 539664 is 466935.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (539663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5574 + ... + 5669.

2⁵³⁹⁶⁶⁴ is an apocalyptic number.

It is an amenable number.

539664 is an abundant number, since it is smaller than the sum of its proper divisors (854592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

539664 is a wasteful number, since it uses less digits than its factorization.

539664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11254 (or 11248 counting only the distinct ones).

The product of its digits is 19440, while the sum is 33.

The square root of 539664 is about 734.6182682183. The cubic root of 539664 is about 81.4156352840.

It can be divided in two parts, 5396 and 64, that added together give a triangular number (5460 = T₁₀₄).

The spelling of 539664 in words is "five hundred thirty-nine thousand, six hundred sixty-four".