20072867 has 2 divisors, whose sum is σ = 20072868. Its totient is φ = 20072866.

The previous prime is 20072839. The next prime is 20072917. The reversal of 20072867 is 76827002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20072867 - 2¹² = 20068771 is a prime.

It is a Chen prime.

It is equal to p_1274963 and since 20072867 and 1274963 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (20072827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10036433 + 10036434.

It is an arithmetic number, because the mean of its divisors is an integer number (10036434).

Almost surely, 2^20072867 is an apocalyptic number.

20072867 is a deficient number, since it is larger than the sum of its proper divisors (1).

20072867 is an equidigital number, since it uses as much as digits as its factorization.

20072867 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 20072867 is about 4480.2753263611. The cubic root of 20072867 is about 271.7710145689.

Adding to 20072867 its reverse (76827002), we get a palindrome (96899869).

The spelling of 20072867 in words is "twenty million, seventy-two thousand, eight hundred sixty-seven".