863349291 has 12 divisors (see below), whose sum is σ = 1425211632. Its totient is φ = 493342416.

The previous prime is 863349283. The next prime is 863349299. The reversal of 863349291 is 192943368.

It is a happy number.

863349291 is a `hidden beast` number, since 8 + 633 + 4 + 9 + 2 + 9 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (863349283) and next prime (863349299).

It is not a de Polignac number, because 863349291 - 2³ = 863349283 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (863349299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6851916 + ... + 6852041.

It is an arithmetic number, because the mean of its divisors is an integer number (118767636).

Almost surely, 2^863349291 is an apocalyptic number.

863349291 is a deficient number, since it is larger than the sum of its proper divisors (561862341).

863349291 is a wasteful number, since it uses less digits than its factorization.

863349291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13703970 (or 13703967 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 863349291 is about 29382.8060436712. The cubic root of 863349291 is about 952.2014655390.

The spelling of 863349291 in words is "eight hundred sixty-three million, three hundred forty-nine thousand, two hundred ninety-one".