20696927 has 4 divisors (see below), whose sum is σ = 20717496. Its totient is φ = 20676360.

The previous prime is 20696911. The next prime is 20696953. The reversal of 20696927 is 72969602.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20696927 - 2⁴ = 20696911 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 (20696957) 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, 8693 + ... + 10814.

It is an arithmetic number, because the mean of its divisors is an integer number (5179374).

Almost surely, 2^20696927 is an apocalyptic number.

20696927 is a deficient number, since it is larger than the sum of its proper divisors (20569).

20696927 is a wasteful number, since it uses less digits than its factorization.

20696927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20568.

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 20696927 is about 4549.3875411972. The cubic root of 20696927 is about 274.5587502250.

The spelling of 20696927 in words is "twenty million, six hundred ninety-six thousand, nine hundred twenty-seven".