533408989 has 2 divisors, whose sum is σ = 533408990. Its totient is φ = 533408988.

The previous prime is 533408963. The next prime is 533409001. The reversal of 533408989 is 989804335.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 532086489 + 1322500 = 23067^2 + 1150^2 .

It is a cyclic number.

It is not a de Polignac number, because 533408989 - 2⁵ = 533408957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (533408959) 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 as a sum of consecutive naturals, namely, 266704494 + 266704495.

It is an arithmetic number, because the mean of its divisors is an integer number (266704495).

Almost surely, 2^533408989 is an apocalyptic number.

It is an amenable number.

533408989 is a deficient number, since it is larger than the sum of its proper divisors (1).

533408989 is an equidigital number, since it uses as much as digits as its factorization.

533408989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 933120, while the sum is 49.

The square root of 533408989 is about 23095.6487027319. The cubic root of 533408989 is about 810.9986103506.

The spelling of 533408989 in words is "five hundred thirty-three million, four hundred eight thousand, nine hundred eighty-nine".