534382921 has 4 divisors (see below), whose sum is σ = 535054212. Its totient is φ = 533711632.

The previous prime is 534382909. The next prime is 534382993. The reversal of 534382921 is 129283435.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 129283435 = 5 ⋅25856687.

It can be written as a sum of positive squares in 2 ways, for example, as 435181321 + 99201600 = 20861^2 + 9960^2 .

It is a cyclic number.

It is not a de Polignac number, because 534382921 - 2¹⁷ = 534251849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (534386921) 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, 334450 + ... + 336043.

It is an arithmetic number, because the mean of its divisors is an integer number (133763553).

Almost surely, 2^534382921 is an apocalyptic number.

It is an amenable number.

534382921 is a deficient number, since it is larger than the sum of its proper divisors (671291).

534382921 is an equidigital number, since it uses as much as digits as its factorization.

534382921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671290.

The product of its digits is 51840, while the sum is 37.

The square root of 534382921 is about 23116.7238379490. The cubic root of 534382921 is about 811.4919011637.

The spelling of 534382921 in words is "five hundred thirty-four million, three hundred eighty-two thousand, nine hundred twenty-one".