249366863 has 8 divisors (see below), whose sum is σ = 268511760. Its totient is φ = 230719360.

The previous prime is 249366833. The next prime is 249366937. The reversal of 249366863 is 368663942.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-249366863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249366833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123308 + ... + 125313.

It is an arithmetic number, because the mean of its divisors is an integer number (33563970).

Almost surely, 2^249366863 is an apocalyptic number.

249366863 is a deficient number, since it is larger than the sum of its proper divisors (19144897).

249366863 is a wasteful number, since it uses less digits than its factorization.

249366863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248697.

The product of its digits is 1119744, while the sum is 47.

The square root of 249366863 is about 15791.3540584714. The cubic root of 249366863 is about 629.4282736211.

The spelling of 249366863 in words is "two hundred forty-nine million, three hundred sixty-six thousand, eight hundred sixty-three".