8164804399 has 2 divisors, whose sum is σ = 8164804400. Its totient is φ = 8164804398.

The previous prime is 8164804379. The next prime is 8164804441. The reversal of 8164804399 is 9934084618.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8164804399 - 2⁵ = 8164804367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8164804309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4082402199 + 4082402200.

It is an arithmetic number, because the mean of its divisors is an integer number (4082402200).

Almost surely, 2^8164804399 is an apocalyptic number.

8164804399 is a deficient number, since it is larger than the sum of its proper divisors (1).

8164804399 is an equidigital number, since it uses as much as digits as its factorization.

8164804399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1492992, while the sum is 52.

The square root of 8164804399 is about 90359.3072073929. The cubic root of 8164804399 is about 2013.6404573802.

The spelling of 8164804399 in words is "eight billion, one hundred sixty-four million, eight hundred four thousand, three hundred ninety-nine".