534781 has 8 divisors (see below), whose sum is σ = 594944. Its totient is φ = 477360.

The previous prime is 534739. The next prime is 534799. The reversal of 534781 is 187435.

534781 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 534781 - 2¹¹ = 532733 is a prime.

It is a super-2 number, since 2×534781² = 571981435922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (534581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 261 + ... + 1066.

It is an arithmetic number, because the mean of its divisors is an integer number (74368).

2⁵³⁴⁷⁸¹ is an apocalyptic number.

It is an amenable number.

534781 is a deficient number, since it is larger than the sum of its proper divisors (60163).

534781 is a wasteful number, since it uses less digits than its factorization.

534781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1371.

The product of its digits is 3360, while the sum is 28.

The square root of 534781 is about 731.2872212749. The cubic root of 534781 is about 81.1693353276.

The spelling of 534781 in words is "five hundred thirty-four thousand, seven hundred eighty-one".