534642393 has 4 divisors (see below), whose sum is σ = 712856528. Its totient is φ = 356428260.

The previous prime is 534642371. The next prime is 534642403. The reversal of 534642393 is 393246435.

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 de Polignac number, because none of the positive numbers 2^k-534642393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (534642293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89107063 + ... + 89107068.

It is an arithmetic number, because the mean of its divisors is an integer number (178214132).

Almost surely, 2^534642393 is an apocalyptic number.

It is an amenable number.

534642393 is a deficient number, since it is larger than the sum of its proper divisors (178214135).

534642393 is a wasteful number, since it uses less digits than its factorization.

534642393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178214134.

The product of its digits is 233280, while the sum is 39.

The square root of 534642393 is about 23122.3353708054. The cubic root of 534642393 is about 811.6232210769.

The spelling of 534642393 in words is "five hundred thirty-four million, six hundred forty-two thousand, three hundred ninety-three".