533986409 has 4 divisors (see below), whose sum is σ = 582530640. Its totient is φ = 485442180.

The previous prime is 533986391. The next prime is 533986429. The reversal of 533986409 is 904689335.

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 533986409 - 2²⁴ = 517209193 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (533986429) 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, 24272099 + ... + 24272120.

It is an arithmetic number, because the mean of its divisors is an integer number (145632660).

Almost surely, 2^533986409 is an apocalyptic number.

It is an amenable number.

533986409 is a deficient number, since it is larger than the sum of its proper divisors (48544231).

533986409 is a wasteful number, since it uses less digits than its factorization.

533986409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48544230.

The product of its (nonzero) digits is 699840, while the sum is 47.

The square root of 533986409 is about 23108.1459446664. The cubic root of 533986409 is about 811.2911425688.

The spelling of 533986409 in words is "five hundred thirty-three million, nine hundred eighty-six thousand, four hundred nine".