20874367 has 2 divisors, whose sum is σ = 20874368. Its totient is φ = 20874366.

The previous prime is 20874349. The next prime is 20874379. The reversal of 20874367 is 76347802.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20874367 - 2¹⁹ = 20350079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20874397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10437183 + 10437184.

It is an arithmetic number, because the mean of its divisors is an integer number (10437184).

Almost surely, 2^20874367 is an apocalyptic number.

20874367 is a deficient number, since it is larger than the sum of its proper divisors (1).

20874367 is an equidigital number, since it uses as much as digits as its factorization.

20874367 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 20874367 is about 4568.8474476612. The cubic root of 20874367 is about 275.3411391742.

The spelling of 20874367 in words is "twenty million, eight hundred seventy-four thousand, three hundred sixty-seven".