20675701 has 2 divisors, whose sum is σ = 20675702. Its totient is φ = 20675700.

The previous prime is 20675693. The next prime is 20675713. The reversal of 20675701 is 10757602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18576100 + 2099601 = 4310^2 + 1449^2 .

It is a cyclic number.

It is not a de Polignac number, because 20675701 - 2³ = 20675693 is a prime.

It is a super-2 number, since 2×20675701² = 854969223682802, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20675701.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20675761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10337850 + 10337851.

It is an arithmetic number, because the mean of its divisors is an integer number (10337851).

Almost surely, 2^20675701 is an apocalyptic number.

It is an amenable number.

20675701 is a deficient number, since it is larger than the sum of its proper divisors (1).

20675701 is an equidigital number, since it uses as much as digits as its factorization.

20675701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 20675701 is about 4547.0541012836. The cubic root of 20675701 is about 274.4648590333.

The spelling of 20675701 in words is "twenty million, six hundred seventy-five thousand, seven hundred one".