20696536 has 16 divisors (see below), whose sum is σ = 44349840. Its totient is φ = 8869920.

The previous prime is 20696521. The next prime is 20696549. The reversal of 20696536 is 63569602.

It is a junction number, because it is equal to n+sod(n) for n = 20696495 and 20696504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184735 + ... + 184846.

It is an arithmetic number, because the mean of its divisors is an integer number (2771865).

Almost surely, 2^20696536 is an apocalyptic number.

It is an amenable number.

20696536 is an abundant number, since it is smaller than the sum of its proper divisors (23653304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20696536 is a wasteful number, since it uses less digits than its factorization.

20696536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369594 (or 369590 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 20696536 is about 4549.3445681768. The cubic root of 20696536 is about 274.5570212542.

The spelling of 20696536 in words is "twenty million, six hundred ninety-six thousand, five hundred thirty-six".