33779028 has 24 divisors (see below), whose sum is σ = 79047360. Its totient is φ = 11226880.

The previous prime is 33779023. The next prime is 33779029. The reversal of 33779028 is 82097733.

It is a super-2 number, since 2×33779028² = 2282045465249568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33779023) 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 7 ways as a sum of consecutive naturals, for example, 388 + ... + 8228.

It is an arithmetic number, because the mean of its divisors is an integer number (3293640).

Almost surely, 2^33779028 is an apocalyptic number.

It is an amenable number.

33779028 is an abundant number, since it is smaller than the sum of its proper divisors (45268332).

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

33779028 is a wasteful number, since it uses less digits than its factorization.

33779028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8207 (or 8205 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 39.

The square root of 33779028 is about 5811.9728148022. The cubic root of 33779028 is about 323.2578272219.

The spelling of 33779028 in words is "thirty-three million, seven hundred seventy-nine thousand, twenty-eight".