33628773 has 4 divisors (see below), whose sum is σ = 44838368. Its totient is φ = 22419180.

The previous prime is 33628723. The next prime is 33628781. The reversal of 33628773 is 37782633.

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.

It is not a de Polignac number, because 33628773 - 2²⁴ = 16851557 is a prime.

It is a super-2 number, since 2×33628773² = 2261788746971058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33628723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5604793 + ... + 5604798.

It is an arithmetic number, because the mean of its divisors is an integer number (11209592).

Almost surely, 2^33628773 is an apocalyptic number.

It is an amenable number.

33628773 is a deficient number, since it is larger than the sum of its proper divisors (11209595).

33628773 is a wasteful number, since it uses less digits than its factorization.

33628773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11209594.

The product of its digits is 127008, while the sum is 39.

The square root of 33628773 is about 5799.0320744069. The cubic root of 33628773 is about 322.7778124140. Note that the first 3 decimals are identical.

The spelling of 33628773 in words is "thirty-three million, six hundred twenty-eight thousand, seven hundred seventy-three".