33982978 has 8 divisors (see below), whose sum is σ = 51810300. Its totient is φ = 16712880.

The previous prime is 33982961. The next prime is 33982979. The reversal of 33982978 is 87928933.

It can be written as a sum of positive squares in 2 ways, for example, as 30437289 + 3545689 = 5517^2 + 1883^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (33982979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139153 + ... + 139396.

Almost surely, 2^33982978 is an apocalyptic number.

33982978 is a deficient number, since it is larger than the sum of its proper divisors (17827322).

33982978 is a wasteful number, since it uses less digits than its factorization.

33982978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278612.

The product of its digits is 653184, while the sum is 49.

The square root of 33982978 is about 5829.4920876522. The cubic root of 33982978 is about 323.9071076990.

The spelling of 33982978 in words is "thirty-three million, nine hundred eighty-two thousand, nine hundred seventy-eight".