32889889 has 2 divisors, whose sum is σ = 32889890. Its totient is φ = 32889888.

The previous prime is 32889881. The next prime is 32889947. The reversal of 32889889 is 98898823.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19140625 + 13749264 = 4375^2 + 3708^2 .

It is an emirp because it is prime and its reverse (98898823) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32889889 - 2³ = 32889881 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (32889881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16444944 + 16444945.

It is an arithmetic number, because the mean of its divisors is an integer number (16444945).

Almost surely, 2^32889889 is an apocalyptic number.

It is an amenable number.

32889889 is a deficient number, since it is larger than the sum of its proper divisors (1).

32889889 is an equidigital number, since it uses as much as digits as its factorization.

32889889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1990656, while the sum is 55.

The square root of 32889889 is about 5734.9707061152. The cubic root of 32889889 is about 320.3962831350.

The spelling of 32889889 in words is "thirty-two million, eight hundred eighty-nine thousand, eight hundred eighty-nine".