20893927 has 2 divisors, whose sum is σ = 20893928. Its totient is φ = 20893926.

The previous prime is 20893919. The next prime is 20893931. The reversal of 20893927 is 72939802.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20893927 - 2³ = 20893919 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20893927.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20893967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10446963 + 10446964.

It is an arithmetic number, because the mean of its divisors is an integer number (10446964).

Almost surely, 2^20893927 is an apocalyptic number.

20893927 is a deficient number, since it is larger than the sum of its proper divisors (1).

20893927 is an equidigital number, since it uses as much as digits as its factorization.

20893927 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 20893927 is about 4570.9875300639. The cubic root of 20893927 is about 275.4271136994.

The spelling of 20893927 in words is "twenty million, eight hundred ninety-three thousand, nine hundred twenty-seven".