20696319 has 12 divisors (see below), whose sum is σ = 34165456. Its totient is φ = 11826432.

The previous prime is 20696317. The next prime is 20696321. The reversal of 20696319 is 91369602.

It is an interprime number because it is at equal distance from previous prime (20696317) and next prime (20696321).

It is not a de Polignac number, because 20696319 - 2¹ = 20696317 is a prime.

It is a super-2 number, since 2×20696319² = 856675240299522, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20696317) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 164194 + ... + 164319.

Almost surely, 2^20696319 is an apocalyptic number.

20696319 is a deficient number, since it is larger than the sum of its proper divisors (13469137).

20696319 is a wasteful number, since it uses less digits than its factorization.

20696319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328526 (or 328523 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 20696319 is about 4549.3207185249. The cubic root of 20696319 is about 274.5560616881.

The spelling of 20696319 in words is "twenty million, six hundred ninety-six thousand, three hundred nineteen".