20364695 has 16 divisors (see below), whose sum is σ = 26484192. Its totient is φ = 14943360.

The previous prime is 20364661. The next prime is 20364697. The reversal of 20364695 is 59646302.

It is not a de Polignac number, because 20364695 - 2²⁰ = 19316119 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 (20364697) 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, 10340 + ... + 12150.

It is an arithmetic number, because the mean of its divisors is an integer number (1655262).

Almost surely, 2^20364695 is an apocalyptic number.

20364695 is a deficient number, since it is larger than the sum of its proper divisors (6119497).

20364695 is a wasteful number, since it uses less digits than its factorization.

20364695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 20364695 is about 4512.7258946229. The cubic root of 20364695 is about 273.0817244717.

The spelling of 20364695 in words is "twenty million, three hundred sixty-four thousand, six hundred ninety-five".