534784981 has 4 divisors (see below), whose sum is σ = 535189312. Its totient is φ = 534380652.

The previous prime is 534784903. The next prime is 534785011. The reversal of 534784981 is 189487435.

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, and also an emirpimes, since its reverse is a distinct semiprime: 189487435 = 5 ⋅37897487.

It is a cyclic number.

It is not a de Polignac number, because 534784981 - 2¹³ = 534776789 is a prime.

It is a super-2 number, since 2×534784981² = 571989951806340722, 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 (534784381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200175 + ... + 202828.

It is an arithmetic number, because the mean of its divisors is an integer number (133797328).

Almost surely, 2^534784981 is an apocalyptic number.

It is an amenable number.

534784981 is a deficient number, since it is larger than the sum of its proper divisors (404331).

534784981 is a wasteful number, since it uses less digits than its factorization.

534784981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404330.

The product of its digits is 967680, while the sum is 49.

The square root of 534784981 is about 23125.4185043212. The cubic root of 534784981 is about 811.6953673980.

The spelling of 534784981 in words is "five hundred thirty-four million, seven hundred eighty-four thousand, nine hundred eighty-one".