20926627 has 2 divisors, whose sum is σ = 20926628. Its totient is φ = 20926626.

The previous prime is 20926621. The next prime is 20926639. The reversal of 20926627 is 72662902.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20926627 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20926592 and 20926601.

It is not a weakly prime, because it can be changed into another prime (20926621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10463313 + 10463314.

It is an arithmetic number, because the mean of its divisors is an integer number (10463314).

Almost surely, 2^20926627 is an apocalyptic number.

20926627 is a deficient number, since it is larger than the sum of its proper divisors (1).

20926627 is an equidigital number, since it uses as much as digits as its factorization.

20926627 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 20926627 is about 4574.5630392421. The cubic root of 20926627 is about 275.5707243632.

The spelling of 20926627 in words is "twenty million, nine hundred twenty-six thousand, six hundred twenty-seven".