249847463 has 4 divisors (see below), whose sum is σ = 250084008. Its totient is φ = 249610920.

The previous prime is 249847439. The next prime is 249847471. The reversal of 249847463 is 364748942.

It is a happy number.

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 249847463 - 2¹⁸ = 249585319 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 (249847063) 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 3 ways as a sum of consecutive naturals, for example, 116681 + ... + 118802.

It is an arithmetic number, because the mean of its divisors is an integer number (62521002).

Almost surely, 2^249847463 is an apocalyptic number.

249847463 is a deficient number, since it is larger than the sum of its proper divisors (236545).

249847463 is a wasteful number, since it uses less digits than its factorization.

249847463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236544.

The product of its digits is 1161216, while the sum is 47.

The square root of 249847463 is about 15806.5639213587. The cubic root of 249847463 is about 629.8323758291.

The spelling of 249847463 in words is "two hundred forty-nine million, eight hundred forty-seven thousand, four hundred sixty-three".