32081609 has 4 divisors (see below), whose sum is σ = 36664704. Its totient is φ = 27498516.

The previous prime is 32081603. The next prime is 32081657. The reversal of 32081609 is 90618023.

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, and also an emirpimes, since its reverse is a distinct semiprime: 90618023 = 3109 ⋅29147.

It is a cyclic number.

It is not a de Polignac number, because 32081609 - 2⁴ = 32081593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32081603) 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, 2291537 + ... + 2291550.

It is an arithmetic number, because the mean of its divisors is an integer number (9166176).

Almost surely, 2^32081609 is an apocalyptic number.

It is an amenable number.

32081609 is a deficient number, since it is larger than the sum of its proper divisors (4583095).

32081609 is an equidigital number, since it uses as much as digits as its factorization.

32081609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4583094.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 32081609 is about 5664.0629410345. The cubic root of 32081609 is about 317.7498692307.

The spelling of 32081609 in words is "thirty-two million, eighty-one thousand, six hundred nine".