534921 has 4 divisors (see below), whose sum is σ = 713232. Its totient is φ = 356612.

The previous prime is 534913. The next prime is 534923. The reversal of 534921 is 129435.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 534921 - 2³ = 534913 is a prime.

It is a super-2 number, since 2×534921² = 572280952482, which contains 22 as substring.

It is a D-number.

534921 is a lucky number.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 534891 and 534900.

It is not an unprimeable number, because it can be changed into a prime (534923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89151 + ... + 89156.

It is an arithmetic number, because the mean of its divisors is an integer number (178308).

2⁵³⁴⁹²¹ is an apocalyptic number.

It is an amenable number.

534921 is a deficient number, since it is larger than the sum of its proper divisors (178311).

534921 is a wasteful number, since it uses less digits than its factorization.

534921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178310.

The product of its digits is 1080, while the sum is 24.

The square root of 534921 is about 731.3829366344. The cubic root of 534921 is about 81.1764178002.

The spelling of 534921 in words is "five hundred thirty-four thousand, nine hundred twenty-one".