249833893 has 4 divisors (see below), whose sum is σ = 249888780. Its totient is φ = 249779008.

The previous prime is 249833873. The next prime is 249833923. The reversal of 249833893 is 398338942.

249833893 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 47568609 + 202265284 = 6897^2 + 14222^2 .

It is a cyclic number.

It is not a de Polignac number, because 249833893 - 2²⁵ = 216279461 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249833873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19930 + ... + 29947.

It is an arithmetic number, because the mean of its divisors is an integer number (62472195).

Almost surely, 2^249833893 is an apocalyptic number.

It is an amenable number.

249833893 is a deficient number, since it is larger than the sum of its proper divisors (54887).

249833893 is an equidigital number, since it uses as much as digits as its factorization.

249833893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54886.

The product of its digits is 1119744, while the sum is 49.

The square root of 249833893 is about 15806.1346634780. The cubic root of 249833893 is about 629.8209728982.

The spelling of 249833893 in words is "two hundred forty-nine million, eight hundred thirty-three thousand, eight hundred ninety-three".