32778668 has 24 divisors (see below), whose sum is σ = 61937568. Its totient is φ = 15088896.

The previous prime is 32778653. The next prime is 32778677. The reversal of 32778668 is 86687723.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 30305 + ... + 31367.

It is an arithmetic number, because the mean of its divisors is an integer number (2580732).

Almost surely, 2^32778668 is an apocalyptic number.

It is an amenable number.

32778668 is a deficient number, since it is larger than the sum of its proper divisors (29158900).

32778668 is a wasteful number, since it uses less digits than its factorization.

32778668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1673 (or 1671 counting only the distinct ones).

The product of its digits is 677376, while the sum is 47.

The square root of 32778668 is about 5725.2657580238. The cubic root of 32778668 is about 320.0347227946.

The spelling of 32778668 in words is "thirty-two million, seven hundred seventy-eight thousand, six hundred sixty-eight".