249084047 has 8 divisors (see below), whose sum is σ = 254741760. Its totient is φ = 243461920.

The previous prime is 249084041. The next prime is 249084071. The reversal of 249084047 is 740480942.

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

It is a cyclic number.

It is not a de Polignac number, because 249084047 - 2²⁰ = 248035471 is a prime.

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 249084047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249084041) 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, 5522 + ... + 22992.

It is an arithmetic number, because the mean of its divisors is an integer number (31842720).

Almost surely, 2^249084047 is an apocalyptic number.

249084047 is a deficient number, since it is larger than the sum of its proper divisors (5657713).

249084047 is a wasteful number, since it uses less digits than its factorization.

249084047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17793.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 249084047 is about 15782.3967444745. The cubic root of 249084047 is about 629.1902311326.

The spelling of 249084047 in words is "two hundred forty-nine million, eighty-four thousand, forty-seven".