19795117 has 2 divisors, whose sum is σ = 19795118. Its totient is φ = 19795116.

The previous prime is 19795103. The next prime is 19795133. The reversal of 19795117 is 71159791.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13169641 + 6625476 = 3629^2 + 2574^2 .

It is an emirp because it is prime and its reverse (71159791) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19795117 - 2¹⁵ = 19762349 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19795117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19795177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9897558 + 9897559.

It is an arithmetic number, because the mean of its divisors is an integer number (9897559).

Almost surely, 2^19795117 is an apocalyptic number.

It is an amenable number.

19795117 is a deficient number, since it is larger than the sum of its proper divisors (1).

19795117 is an equidigital number, since it uses as much as digits as its factorization.

19795117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19845, while the sum is 40.

The square root of 19795117 is about 4449.1703721031. The cubic root of 19795117 is about 270.5116817252.

The spelling of 19795117 in words is "nineteen million, seven hundred ninety-five thousand, one hundred seventeen".