20396935 has 16 divisors (see below), whose sum is σ = 26470080. Its totient is φ = 14999040.

The previous prime is 20396933. The next prime is 20396939. The reversal of 20396935 is 53969302.

It is not a de Polignac number, because 20396935 - 2¹ = 20396933 is a prime.

It is a super-3 number, since 3×20396935³ (a number of 23 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20396894 and 20396903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20396933) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19711 + ... + 20719.

It is an arithmetic number, because the mean of its divisors is an integer number (1654380).

Almost surely, 2^20396935 is an apocalyptic number.

20396935 is a deficient number, since it is larger than the sum of its proper divisors (6073145).

20396935 is a wasteful number, since it uses less digits than its factorization.

20396935 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1338.

The product of its (nonzero) digits is 43740, while the sum is 37.

The square root of 20396935 is about 4516.2966023059. The cubic root of 20396935 is about 273.2257566285.

The spelling of 20396935 in words is "twenty million, three hundred ninety-six thousand, nine hundred thirty-five".