20934633 has 16 divisors (see below), whose sum is σ = 29647296. Its totient is φ = 13094400.

The previous prime is 20934611. The next prime is 20934653. The reversal of 20934633 is 33643902.

It is not a de Polignac number, because 20934633 - 2⁶ = 20934569 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20934633.

It is not an unprimeable number, because it can be changed into a prime (20934653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30310 + ... + 30992.

It is an arithmetic number, because the mean of its divisors is an integer number (1852956).

Almost surely, 2^20934633 is an apocalyptic number.

It is an amenable number.

20934633 is a deficient number, since it is larger than the sum of its proper divisors (8712663).

20934633 is a wasteful number, since it uses less digits than its factorization.

20934633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1304.

The product of its (nonzero) digits is 11664, while the sum is 30.

The square root of 20934633 is about 4575.4380118192. The cubic root of 20934633 is about 275.6058620203.

The spelling of 20934633 in words is "twenty million, nine hundred thirty-four thousand, six hundred thirty-three".