20696797 has 8 divisors (see below), whose sum is σ = 22851360. Its totient is φ = 18587760.

The previous prime is 20696777. The next prime is 20696827. The reversal of 20696797 is 79769602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20696797 - 2¹¹ = 20694749 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 (20696737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10422 + ... + 12247.

It is an arithmetic number, because the mean of its divisors is an integer number (2856420).

Almost surely, 2^20696797 is an apocalyptic number.

It is an amenable number.

20696797 is a deficient number, since it is larger than the sum of its proper divisors (2154563).

20696797 is a wasteful number, since it uses less digits than its factorization.

20696797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22763.

The product of its (nonzero) digits is 285768, while the sum is 46.

The square root of 20696797 is about 4549.3732535372. The cubic root of 20696797 is about 274.5581753777.

The spelling of 20696797 in words is "twenty million, six hundred ninety-six thousand, seven hundred ninety-seven".