249896 has 8 divisors (see below), whose sum is σ = 468570. Its totient is φ = 124944.

The previous prime is 249881. The next prime is 249911. The reversal of 249896 is 698942.

It is an interprime number because it is at equal distance from previous prime (249881) and next prime (249911).

It can be written as a sum of positive squares in only one way, i.e., 168100 + 81796 = 410^2 + 286^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 249896.

It is an unprimeable number.

249896 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15611 + ... + 15626.

2²⁴⁹⁸⁹⁶ is an apocalyptic number.

It is an amenable number.

249896 is a deficient number, since it is larger than the sum of its proper divisors (218674).

249896 is a wasteful number, since it uses less digits than its factorization.

249896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31243 (or 31239 counting only the distinct ones).

The product of its digits is 31104, while the sum is 38.

The square root of 249896 is about 499.8959891817. The cubic root of 249896 is about 62.9873158305.

The spelling of 249896 in words is "two hundred forty-nine thousand, eight hundred ninety-six".