20460697 has 2 divisors, whose sum is σ = 20460698. Its totient is φ = 20460696.

The previous prime is 20460683. The next prime is 20460721. The reversal of 20460697 is 79606402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18974736 + 1485961 = 4356^2 + 1219^2 .

It is a cyclic number.

It is not a de Polignac number, because 20460697 - 2⁷ = 20460569 is a prime.

It is not a weakly prime, because it can be changed into another prime (20460607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10230348 + 10230349.

It is an arithmetic number, because the mean of its divisors is an integer number (10230349).

Almost surely, 2^20460697 is an apocalyptic number.

It is an amenable number.

20460697 is a deficient number, since it is larger than the sum of its proper divisors (1).

20460697 is an equidigital number, since it uses as much as digits as its factorization.

20460697 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 20460697 is about 4523.3501964805. The cubic root of 20460697 is about 273.5101669856.

The spelling of 20460697 in words is "twenty million, four hundred sixty thousand, six hundred ninety-seven".