20097167 has 4 divisors (see below), whose sum is σ = 20107080. Its totient is φ = 20087256.

The previous prime is 20097157. The next prime is 20097169. The reversal of 20097167 is 76179002.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20097167 - 2⁴ = 20097151 is a prime.

It is a super-2 number, since 2×20097167² = 807792242851778, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20097169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 692 + ... + 6377.

It is an arithmetic number, because the mean of its divisors is an integer number (5026770).

Almost surely, 2^20097167 is an apocalyptic number.

20097167 is a deficient number, since it is larger than the sum of its proper divisors (9913).

20097167 is an equidigital number, since it uses as much as digits as its factorization.

20097167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9912.

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 20097167 is about 4482.9863930197. The cubic root of 20097167 is about 271.8806380475.

The spelling of 20097167 in words is "twenty million, ninety-seven thousand, one hundred sixty-seven".