19948583 has 2 divisors, whose sum is σ = 19948584. Its totient is φ = 19948582.

The previous prime is 19948541. The next prime is 19948601. The reversal of 19948583 is 38584991.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19948583 - 2⁶ = 19948519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19908583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9974291 + 9974292.

It is an arithmetic number, because the mean of its divisors is an integer number (9974292).

Almost surely, 2^19948583 is an apocalyptic number.

19948583 is a deficient number, since it is larger than the sum of its proper divisors (1).

19948583 is an equidigital number, since it uses as much as digits as its factorization.

19948583 is an evil number, because the sum of its binary digits is even.

The product of its digits is 311040, while the sum is 47.

The square root of 19948583 is about 4466.3836601886. The cubic root of 19948583 is about 271.2089500198.

The spelling of 19948583 in words is "nineteen million, nine hundred forty-eight thousand, five hundred eighty-three".