20696933 has 4 divisors (see below), whose sum is σ = 21364608. Its totient is φ = 20029260.

The previous prime is 20696911. The next prime is 20696953. The reversal of 20696933 is 33969602.

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 a cyclic number.

It is not a de Polignac number, because 20696933 - 2⁶ = 20696869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20696953) 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, 333791 + ... + 333852.

It is an arithmetic number, because the mean of its divisors is an integer number (5341152).

Almost surely, 2^20696933 is an apocalyptic number.

It is an amenable number.

20696933 is a deficient number, since it is larger than the sum of its proper divisors (667675).

20696933 is an equidigital number, since it uses as much as digits as its factorization.

20696933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667674.

The product of its (nonzero) digits is 52488, while the sum is 38.

The square root of 20696933 is about 4549.3882006265. The cubic root of 20696933 is about 274.5587767563.

The spelling of 20696933 in words is "twenty million, six hundred ninety-six thousand, nine hundred thirty-three".