249963973 has 8 divisors (see below), whose sum is σ = 286014848. Its totient is φ = 213998544.

The previous prime is 249963947. The next prime is 249963983. The reversal of 249963973 is 379369942.

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 249963973 - 2²¹ = 247866821 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 249963973.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249963913) 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, 14961 + ... + 26902.

It is an arithmetic number, because the mean of its divisors is an integer number (35751856).

Almost surely, 2^249963973 is an apocalyptic number.

It is an amenable number.

249963973 is a deficient number, since it is larger than the sum of its proper divisors (36050875).

249963973 is an equidigital number, since it uses as much as digits as its factorization.

249963973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42723.

The product of its digits is 2204496, while the sum is 52.

The square root of 249963973 is about 15810.2489860217. The cubic root of 249963973 is about 629.9302627099.

The spelling of 249963973 in words is "two hundred forty-nine million, nine hundred sixty-three thousand, nine hundred seventy-three".