705831863 has 4 divisors (see below), whose sum is σ = 769998408. Its totient is φ = 641665320.

The previous prime is 705831821. The next prime is 705831871. The reversal of 705831863 is 368138507.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 705831863 - 2¹⁸ = 705569719 is a prime.

It is a super-3 number, since 3×705831863³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 705831863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (705831163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32083256 + ... + 32083277.

It is an arithmetic number, because the mean of its divisors is an integer number (192499602).

Almost surely, 2^705831863 is an apocalyptic number.

705831863 is a deficient number, since it is larger than the sum of its proper divisors (64166545).

705831863 is a wasteful number, since it uses less digits than its factorization.

705831863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64166544.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 705831863 is about 26567.4963630373. The cubic root of 705831863 is about 890.3629639350.

The spelling of 705831863 in words is "seven hundred five million, eight hundred thirty-one thousand, eight hundred sixty-three".