20027701 has 2 divisors, whose sum is σ = 20027702. Its totient is φ = 20027700.

The previous prime is 20027699. The next prime is 20027731. The reversal of 20027701 is 10772002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20016676 + 11025 = 4474^2 + 105^2 .

It is a cyclic number.

It is not a de Polignac number, because 20027701 - 2¹ = 20027699 is a prime.

It is a super-2 number, since 2×20027701² = 802217614690802, which contains 22 as substring.

Together with 20027699, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20027731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10013850 + 10013851.

It is an arithmetic number, because the mean of its divisors is an integer number (10013851).

Almost surely, 2^20027701 is an apocalyptic number.

It is an amenable number.

20027701 is a deficient number, since it is larger than the sum of its proper divisors (1).

20027701 is an equidigital number, since it uses as much as digits as its factorization.

20027701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 196, while the sum is 19.

The square root of 20027701 is about 4475.2319492960. The cubic root of 20027701 is about 271.5670239831.

Adding to 20027701 its reverse (10772002), we get a palindrome (30799703).

The spelling of 20027701 in words is "twenty million, twenty-seven thousand, seven hundred one".