32128986 has 16 divisors (see below), whose sum is σ = 64313568. Its totient is φ = 10700400.

The previous prime is 32128973. The next prime is 32129011. The reversal of 32128986 is 68982123.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12121 + ... + 14531.

It is an arithmetic number, because the mean of its divisors is an integer number (4019598).

Almost surely, 2^32128986 is an apocalyptic number.

32128986 is an abundant number, since it is smaller than the sum of its proper divisors (32184582).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

32128986 is a wasteful number, since it uses less digits than its factorization.

32128986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4637.

The product of its digits is 41472, while the sum is 39.

The square root of 32128986 is about 5668.2436433167. The cubic root of 32128986 is about 317.9062062690.

The spelling of 32128986 in words is "thirty-two million, one hundred twenty-eight thousand, nine hundred eighty-six".