20376893 has 2 divisors, whose sum is σ = 20376894. Its totient is φ = 20376892.

The previous prime is 20376871. The next prime is 20376907. The reversal of 20376893 is 39867302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15077689 + 5299204 = 3883^2 + 2302^2 .

It is a cyclic number.

It is not a de Polignac number, because 20376893 - 2⁸ = 20376637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20316893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10188446 + 10188447.

It is an arithmetic number, because the mean of its divisors is an integer number (10188447).

Almost surely, 2^20376893 is an apocalyptic number.

It is an amenable number.

20376893 is a deficient number, since it is larger than the sum of its proper divisors (1).

20376893 is an equidigital number, since it uses as much as digits as its factorization.

20376893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 20376893 is about 4514.0772035932. The cubic root of 20376893 is about 273.1362368851.

The spelling of 20376893 in words is "twenty million, three hundred seventy-six thousand, eight hundred ninety-three".