20396199 has 8 divisors (see below), whose sum is σ = 27216000. Its totient is φ = 13586936.

The previous prime is 20396197. The next prime is 20396203. The reversal of 20396199 is 99169302.

It is a happy number.

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 20396199 - 2¹ = 20396197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20396191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5302 + ... + 8300.

It is an arithmetic number, because the mean of its divisors is an integer number (3402000).

Almost surely, 2^20396199 is an apocalyptic number.

20396199 is a deficient number, since it is larger than the sum of its proper divisors (6819801).

20396199 is a wasteful number, since it uses less digits than its factorization.

20396199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5269.

The product of its (nonzero) digits is 26244, while the sum is 39.

The square root of 20396199 is about 4516.2151188800. The cubic root of 20396199 is about 273.2224702430. Note that the first 3 decimals are identical.

The spelling of 20396199 in words is "twenty million, three hundred ninety-six thousand, one hundred ninety-nine".