19954933 has 2 divisors, whose sum is σ = 19954934. Its totient is φ = 19954932.

The previous prime is 19954927. The next prime is 19954939. The reversal of 19954933 is 33945991.

It is a balanced prime because it is at equal distance from previous prime (19954927) and next prime (19954939).

It can be written as a sum of positive squares in only one way, i.e., 17623204 + 2331729 = 4198^2 + 1527^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19954933 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19954933.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19954939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9977466 + 9977467.

It is an arithmetic number, because the mean of its divisors is an integer number (9977467).

Almost surely, 2^19954933 is an apocalyptic number.

It is an amenable number.

19954933 is a deficient number, since it is larger than the sum of its proper divisors (1).

19954933 is an equidigital number, since it uses as much as digits as its factorization.

19954933 is an evil number, because the sum of its binary digits is even.

The product of its digits is 131220, while the sum is 43.

The square root of 19954933 is about 4467.0944695630. The cubic root of 19954933 is about 271.2377238953.

The spelling of 19954933 in words is "nineteen million, nine hundred fifty-four thousand, nine hundred thirty-three".