8184897493 has 2 divisors, whose sum is σ = 8184897494. Its totient is φ = 8184897492.

The previous prime is 8184897451. The next prime is 8184897521. The reversal of 8184897493 is 3947984818.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5481625444 + 2703272049 = 74038^2 + 51993^2 .

It is a cyclic number.

It is not a de Polignac number, because 8184897493 - 2²⁵ = 8151343061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8184898493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4092448746 + 4092448747.

It is an arithmetic number, because the mean of its divisors is an integer number (4092448747).

Almost surely, 2^8184897493 is an apocalyptic number.

It is an amenable number.

8184897493 is a deficient number, since it is larger than the sum of its proper divisors (1).

8184897493 is an equidigital number, since it uses as much as digits as its factorization.

8184897493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13934592, while the sum is 61.

The square root of 8184897493 is about 90470.4233050780. The cubic root of 8184897493 is about 2015.2909203602.

The spelling of 8184897493 in words is "eight billion, one hundred eighty-four million, eight hundred ninety-seven thousand, four hundred ninety-three".