534541621 has 4 divisors (see below), whose sum is σ = 535604832. Its totient is φ = 533478412.

The previous prime is 534541619. The next prime is 534541633. The reversal of 534541621 is 126145435.

It is a happy number.

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 534541621 - 2¹ = 534541619 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (534541681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 530851 + ... + 531856.

It is an arithmetic number, because the mean of its divisors is an integer number (133901208).

Almost surely, 2^534541621 is an apocalyptic number.

It is an amenable number.

534541621 is a deficient number, since it is larger than the sum of its proper divisors (1063211).

534541621 is a wasteful number, since it uses less digits than its factorization.

534541621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063210.

The product of its digits is 14400, while the sum is 31.

The square root of 534541621 is about 23120.1561629674. The cubic root of 534541621 is about 811.5722249746.

The spelling of 534541621 in words is "five hundred thirty-four million, five hundred forty-one thousand, six hundred twenty-one".