863434399 has 2 divisors, whose sum is σ = 863434400. Its totient is φ = 863434398.

The previous prime is 863434393. The next prime is 863434433. The reversal of 863434399 is 993434368.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 863434399 - 2²⁹ = 326563487 is a prime.

It is a super-2 number, since 2×863434399² = 1491037922752982402, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (863434393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 431717199 + 431717200.

It is an arithmetic number, because the mean of its divisors is an integer number (431717200).

Almost surely, 2^863434399 is an apocalyptic number.

863434399 is a deficient number, since it is larger than the sum of its proper divisors (1).

863434399 is an equidigital number, since it uses as much as digits as its factorization.

863434399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1679616, while the sum is 49.

The square root of 863434399 is about 29384.2542699317. The cubic root of 863434399 is about 952.2327534933.

The spelling of 863434399 in words is "eight hundred sixty-three million, four hundred thirty-four thousand, three hundred ninety-nine".