20792199 has 4 divisors (see below), whose sum is σ = 27722936. Its totient is φ = 13861464.

The previous prime is 20792197. The next prime is 20792201. The reversal of 20792199 is 99129702.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (20792197) and next prime (20792201).

It is not a de Polignac number, because 20792199 - 2¹ = 20792197 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 (20792197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3465364 + ... + 3465369.

It is an arithmetic number, because the mean of its divisors is an integer number (6930734).

Almost surely, 2^20792199 is an apocalyptic number.

20792199 is a deficient number, since it is larger than the sum of its proper divisors (6930737).

20792199 is an equidigital number, since it uses as much as digits as its factorization.

20792199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6930736.

The product of its (nonzero) digits is 20412, while the sum is 39.

The square root of 20792199 is about 4559.8463789913. The cubic root of 20792199 is about 274.9793879868.

It can be divided in two parts, 2079 and 2199, that added together give a triangular number (4278 = T₉₂).

The spelling of 20792199 in words is "twenty million, seven hundred ninety-two thousand, one hundred ninety-nine".