849736399 has 2 divisors, whose sum is σ = 849736400. Its totient is φ = 849736398.

The previous prime is 849736387. The next prime is 849736409. The reversal of 849736399 is 993637948.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 849736399 - 2⁵ = 849736367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (849736369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 424868199 + 424868200.

It is an arithmetic number, because the mean of its divisors is an integer number (424868200).

Almost surely, 2^849736399 is an apocalyptic number.

849736399 is a deficient number, since it is larger than the sum of its proper divisors (1).

849736399 is an equidigital number, since it uses as much as digits as its factorization.

849736399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8817984, while the sum is 58.

The square root of 849736399 is about 29150.2384038278. The cubic root of 849736399 is about 947.1703051579.

The spelling of 849736399 in words is "eight hundred forty-nine million, seven hundred thirty-six thousand, three hundred ninety-nine".