249007893 has 4 divisors (see below), whose sum is σ = 332010528. Its totient is φ = 166005260.

The previous prime is 249007879. The next prime is 249007897. The reversal of 249007893 is 398700942.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 249007893 - 2¹³ = 248999701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249007897) 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, 41501313 + ... + 41501318.

It is an arithmetic number, because the mean of its divisors is an integer number (83002632).

Almost surely, 2^249007893 is an apocalyptic number.

It is an amenable number.

249007893 is a deficient number, since it is larger than the sum of its proper divisors (83002635).

249007893 is an equidigital number, since it uses as much as digits as its factorization.

249007893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83002634.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 249007893 is about 15779.9839353530. The cubic root of 249007893 is about 629.1261025283.

The spelling of 249007893 in words is "two hundred forty-nine million, seven thousand, eight hundred ninety-three".