20327867 has 16 divisors (see below), whose sum is σ = 23892480. Its totient is φ = 16936128.

The previous prime is 20327861. The next prime is 20327873. The reversal of 20327867 is 76872302.

It is an interprime number because it is at equal distance from previous prime (20327861) and next prime (20327873).

It is a cyclic number.

It is not a de Polignac number, because 20327867 - 2²⁰ = 19279291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20327861) 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, 41498 + ... + 41984.

It is an arithmetic number, because the mean of its divisors is an integer number (1493280).

Almost surely, 2^20327867 is an apocalyptic number.

20327867 is a deficient number, since it is larger than the sum of its proper divisors (3564613).

20327867 is an equidigital number, since it uses as much as digits as its factorization.

20327867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 20327867 is about 4508.6435875993. The cubic root of 20327867 is about 272.9170093062.

The spelling of 20327867 in words is "twenty million, three hundred twenty-seven thousand, eight hundred sixty-seven".