863949830 has 8 divisors (see below), whose sum is σ = 1555109712. Its totient is φ = 345579928.

The previous prime is 863949773. The next prime is 863949833. The reversal of 863949830 is 38949368.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (863949833) 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, 43197482 + ... + 43197501.

It is an arithmetic number, because the mean of its divisors is an integer number (194388714).

Almost surely, 2^863949830 is an apocalyptic number.

863949830 is a deficient number, since it is larger than the sum of its proper divisors (691159882).

863949830 is a wasteful number, since it uses less digits than its factorization.

863949830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86394990.

The product of its (nonzero) digits is 1119744, while the sum is 50.

The square root of 863949830 is about 29393.0234919785. The cubic root of 863949830 is about 952.4221956596.

The spelling of 863949830 in words is "eight hundred sixty-three million, nine hundred forty-nine thousand, eight hundred thirty".