653559889 has 4 divisors (see below), whose sum is σ = 654440256. Its totient is φ = 652679524.

The previous prime is 653559877. The next prime is 653559901. The reversal of 653559889 is 988955356.

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 an interprime number because it is at equal distance from previous prime (653559877) and next prime (653559901).

It is a cyclic number.

It is not a de Polignac number, because 653559889 - 2⁵ = 653559857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (653599889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 439069 + ... + 440554.

It is an arithmetic number, because the mean of its divisors is an integer number (163610064).

Almost surely, 2^653559889 is an apocalyptic number.

It is an amenable number.

653559889 is a deficient number, since it is larger than the sum of its proper divisors (880367).

653559889 is an equidigital number, since it uses as much as digits as its factorization.

653559889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880366.

The product of its digits is 11664000, while the sum is 58.

The square root of 653559889 is about 25564.8174059585. The cubic root of 653559889 is about 867.8176194680.

The spelling of 653559889 in words is "six hundred fifty-three million, five hundred fifty-nine thousand, eight hundred eighty-nine".