534494821 has 4 divisors (see below), whose sum is σ = 610851232. Its totient is φ = 458138412.

The previous prime is 534494813. The next prime is 534494827. The reversal of 534494821 is 128494435.

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 534494821 - 2³ = 534494813 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 (534494827) 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, 38178195 + ... + 38178208.

It is an arithmetic number, because the mean of its divisors is an integer number (152712808).

Almost surely, 2^534494821 is an apocalyptic number.

It is an amenable number.

534494821 is a deficient number, since it is larger than the sum of its proper divisors (76356411).

534494821 is an equidigital number, since it uses as much as digits as its factorization.

534494821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76356410.

The product of its digits is 138240, while the sum is 40.

The square root of 534494821 is about 23119.1440369232. The cubic root of 534494821 is about 811.5485394547.

The spelling of 534494821 in words is "five hundred thirty-four million, four hundred ninety-four thousand, eight hundred twenty-one".