534744391 has 4 divisors (see below), whose sum is σ = 535059000. Its totient is φ = 534429784.

The previous prime is 534744347. The next prime is 534744403. The reversal of 534744391 is 193447435.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 193447435 = 5 ⋅38689487.

It is a cyclic number.

It is not a de Polignac number, because 534744391 - 2⁹ = 534743879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (534744191) 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, 154741 + ... + 158158.

It is an arithmetic number, because the mean of its divisors is an integer number (133764750).

Almost surely, 2^534744391 is an apocalyptic number.

534744391 is a deficient number, since it is larger than the sum of its proper divisors (314609).

534744391 is a wasteful number, since it uses less digits than its factorization.

534744391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314608.

The product of its digits is 181440, while the sum is 40.

The square root of 534744391 is about 23124.5408819289. The cubic root of 534744391 is about 811.6748310767.

The spelling of 534744391 in words is "five hundred thirty-four million, seven hundred forty-four thousand, three hundred ninety-one".