539647 has 4 divisors (see below), whose sum is σ = 541440. Its totient is φ = 537856.

The previous prime is 539641. The next prime is 539653. The reversal of 539647 is 746935.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (539641) and next prime (539653).

It is a cyclic number.

It is not a de Polignac number, because 539647 - 2³ = 539639 is a prime.

It is a Duffinian number.

539647 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (539641) 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, 322 + ... + 1087.

It is an arithmetic number, because the mean of its divisors is an integer number (135360).

2⁵³⁹⁶⁴⁷ is an apocalyptic number.

539647 is a deficient number, since it is larger than the sum of its proper divisors (1793).

539647 is a wasteful number, since it uses less digits than its factorization.

539647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1792.

The product of its digits is 22680, while the sum is 34.

The square root of 539647 is about 734.6066974919. The cubic root of 539647 is about 81.4147803815.

The spelling of 539647 in words is "five hundred thirty-nine thousand, six hundred forty-seven".