32997889 has 16 divisors (see below), whose sum is σ = 35890560. Its totient is φ = 30240000.

The previous prime is 32997871. The next prime is 32997931. The reversal of 32997889 is 98879923.

It is a cyclic number.

It is not a de Polignac number, because 32997889 - 2⁷ = 32997761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32997859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82089 + ... + 82489.

It is an arithmetic number, because the mean of its divisors is an integer number (2243160).

Almost surely, 2^32997889 is an apocalyptic number.

It is an amenable number.

32997889 is a deficient number, since it is larger than the sum of its proper divisors (2892671).

32997889 is a wasteful number, since it uses less digits than its factorization.

32997889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552.

The product of its digits is 1959552, while the sum is 55.

The square root of 32997889 is about 5744.3789046336. The cubic root of 32997889 is about 320.7465933538.

The spelling of 32997889 in words is "thirty-two million, nine hundred ninety-seven thousand, eight hundred eighty-nine".