20468727 has 8 divisors (see below), whose sum is σ = 30324080. Its totient is φ = 13645800.

The previous prime is 20468671. The next prime is 20468729. The reversal of 20468727 is 72786402.

It is not a de Polignac number, because 20468727 - 2¹⁰ = 20467703 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20468691 and 20468700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20468729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 379024 + ... + 379077.

It is an arithmetic number, because the mean of its divisors is an integer number (3790510).

Almost surely, 2^20468727 is an apocalyptic number.

20468727 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

20468727 is a deficient number, since it is larger than the sum of its proper divisors (9855353).

20468727 is an equidigital number, since it uses as much as digits as its factorization.

20468727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758110 (or 758104 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 20468727 is about 4524.2377258495. The cubic root of 20468727 is about 273.5459428829.

The spelling of 20468727 in words is "twenty million, four hundred sixty-eight thousand, seven hundred twenty-seven".