534661 has 2 divisors, whose sum is σ = 534662. Its totient is φ = 534660.

The previous prime is 534659. The next prime is 534671. The reversal of 534661 is 166435.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 497025 + 37636 = 705^2 + 194^2 .

It is a cyclic number.

It is not a de Polignac number, because 534661 - 2¹ = 534659 is a prime.

Together with 534659, it forms a pair of twin primes.

It is equal to p₄₄₁₇₉ and since 534661 and 44179 have the same sum of digits, it is a Honaker prime.

It is a nialpdrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (534601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 267330 + 267331.

It is an arithmetic number, because the mean of its divisors is an integer number (267331).

2⁵³⁴⁶⁶¹ is an apocalyptic number.

It is an amenable number.

534661 is a deficient number, since it is larger than the sum of its proper divisors (1).

534661 is an equidigital number, since it uses as much as digits as its factorization.

534661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 25.

The square root of 534661 is about 731.2051695660. The cubic root of 534661 is about 81.1632636528.

The spelling of 534661 in words is "five hundred thirty-four thousand, six hundred sixty-one".