19960459 has 2 divisors, whose sum is σ = 19960460. Its totient is φ = 19960458.

The previous prime is 19960453. The next prime is 19960511. The reversal of 19960459 is 95406991.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 19960459 - 2⁷ = 19960331 is a prime.

It is not a weakly prime, because it can be changed into another prime (19960453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9980229 + 9980230.

It is an arithmetic number, because the mean of its divisors is an integer number (9980230).

Almost surely, 2^19960459 is an apocalyptic number.

19960459 is a deficient number, since it is larger than the sum of its proper divisors (1).

19960459 is an equidigital number, since it uses as much as digits as its factorization.

19960459 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 87480, while the sum is 43.

The square root of 19960459 is about 4467.7129495974. The cubic root of 19960459 is about 271.2627589969.

The spelling of 19960459 in words is "nineteen million, nine hundred sixty thousand, four hundred fifty-nine".