33628723 has 2 divisors, whose sum is σ = 33628724. Its totient is φ = 33628722.

The previous prime is 33628667. The next prime is 33628781. The reversal of 33628723 is 32782633.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33628723 is a prime.

It is a super-2 number, since 2×33628723² = 2261782021221458, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33628123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16814361 + 16814362.

It is an arithmetic number, because the mean of its divisors is an integer number (16814362).

Almost surely, 2^33628723 is an apocalyptic number.

33628723 is a deficient number, since it is larger than the sum of its proper divisors (1).

33628723 is an equidigital number, since it uses as much as digits as its factorization.

33628723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 34.

The square root of 33628723 is about 5799.0277633410. The cubic root of 33628723 is about 322.7776524429. Note that the first 3 decimals are identical.

The spelling of 33628723 in words is "thirty-three million, six hundred twenty-eight thousand, seven hundred twenty-three".