493991533 has 4 divisors (see below), whose sum is σ = 564561760. Its totient is φ = 423421308.

The previous prime is 493991527. The next prime is 493991543. The reversal of 493991533 is 335199394.

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 493991533 - 2⁹ = 493991021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (493991543) 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, 35285103 + ... + 35285116.

It is an arithmetic number, because the mean of its divisors is an integer number (141140440).

Almost surely, 2^493991533 is an apocalyptic number.

It is an amenable number.

493991533 is a deficient number, since it is larger than the sum of its proper divisors (70570227).

493991533 is an equidigital number, since it uses as much as digits as its factorization.

493991533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70570226.

The product of its digits is 393660, while the sum is 46.

The square root of 493991533 is about 22225.9202959068. The cubic root of 493991533 is about 790.5084229227.

The spelling of 493991533 in words is "four hundred ninety-three million, nine hundred ninety-one thousand, five hundred thirty-three".