20264371 has 2 divisors, whose sum is σ = 20264372. Its totient is φ = 20264370.

The previous prime is 20264347. The next prime is 20264381. The reversal of 20264371 is 17346202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20264371 - 2⁵ = 20264339 is a prime.

It is not a weakly prime, because it can be changed into another prime (20264341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10132185 + 10132186.

It is an arithmetic number, because the mean of its divisors is an integer number (10132186).

Almost surely, 2^20264371 is an apocalyptic number.

20264371 is a deficient number, since it is larger than the sum of its proper divisors (1).

20264371 is an equidigital number, since it uses as much as digits as its factorization.

20264371 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 20264371 is about 4501.5964945783. The cubic root of 20264371 is about 272.6325522952.

The spelling of 20264371 in words is "twenty million, two hundred sixty-four thousand, three hundred seventy-one".