19760641 has 2 divisors, whose sum is σ = 19760642. Its totient is φ = 19760640.

The previous prime is 19760623. The next prime is 19760651. The reversal of 19760641 is 14606791.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14938225 + 4822416 = 3865^2 + 2196^2 .

It is a cyclic number.

It is not a de Polignac number, because 19760641 - 2²³ = 11372033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19760597 and 19760606.

It is not a weakly prime, because it can be changed into another prime (19760621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9880320 + 9880321.

It is an arithmetic number, because the mean of its divisors is an integer number (9880321).

Almost surely, 2^19760641 is an apocalyptic number.

It is an amenable number.

19760641 is a deficient number, since it is larger than the sum of its proper divisors (1).

19760641 is an equidigital number, since it uses as much as digits as its factorization.

19760641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 19760641 is about 4445.2942534775. The cubic root of 19760641 is about 270.3545456621.

The spelling of 19760641 in words is "nineteen million, seven hundred sixty thousand, six hundred forty-one".