534221999 has 2 divisors, whose sum is σ = 534222000. Its totient is φ = 534221998.

The previous prime is 534221983. The next prime is 534222001. The reversal of 534221999 is 999122435.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 534221999 - 2⁴ = 534221983 is a prime.

Together with 534222001, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (534227999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 267110999 + 267111000.

It is an arithmetic number, because the mean of its divisors is an integer number (267111000).

Almost surely, 2^534221999 is an apocalyptic number.

534221999 is a deficient number, since it is larger than the sum of its proper divisors (1).

534221999 is an equidigital number, since it uses as much as digits as its factorization.

534221999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 174960, while the sum is 44.

The square root of 534221999 is about 23113.2429355986. The cubic root of 534221999 is about 811.4104364780.

The spelling of 534221999 in words is "five hundred thirty-four million, two hundred twenty-one thousand, nine hundred ninety-nine".