20320167 has 8 divisors (see below), whose sum is σ = 30964096. Its totient is φ = 11611512.

The previous prime is 20320103. The next prime is 20320171. The reversal of 20320167 is 76102302.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20320167 - 2⁶ = 20320103 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 967627 = 20320167 / (2 + 0 + 3 + 2 + 0 + 1 + 6 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20320187) 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, 483793 + ... + 483834.

It is an arithmetic number, because the mean of its divisors is an integer number (3870512).

Almost surely, 2^20320167 is an apocalyptic number.

20320167 is a deficient number, since it is larger than the sum of its proper divisors (10643929).

20320167 is an equidigital number, since it uses as much as digits as its factorization.

20320167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967637.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 20320167 is about 4507.7895913629. The cubic root of 20320167 is about 272.8825455105.

Adding to 20320167 its reverse (76102302), we get a palindrome (96422469).

The spelling of 20320167 in words is "twenty million, three hundred twenty thousand, one hundred sixty-seven".