19880963 has 2 divisors, whose sum is σ = 19880964. Its totient is φ = 19880962.

The previous prime is 19880933. The next prime is 19880981. The reversal of 19880963 is 36908891.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19880963 - 2¹⁰ = 19879939 is a prime.

It is not a weakly prime, because it can be changed into another prime (19880933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9940481 + 9940482.

It is an arithmetic number, because the mean of its divisors is an integer number (9940482).

Almost surely, 2^19880963 is an apocalyptic number.

19880963 is a deficient number, since it is larger than the sum of its proper divisors (1).

19880963 is an equidigital number, since it uses as much as digits as its factorization.

19880963 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 19880963 is about 4458.8073517478. The cubic root of 19880963 is about 270.9021628192.

The spelling of 19880963 in words is "nineteen million, eight hundred eighty thousand, nine hundred sixty-three".