249969347 has 2 divisors, whose sum is σ = 249969348. Its totient is φ = 249969346.

The previous prime is 249969341. The next prime is 249969367. The reversal of 249969347 is 743969942.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 249969347 - 2⁶ = 249969283 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (249969341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124984673 + 124984674.

It is an arithmetic number, because the mean of its divisors is an integer number (124984674).

Almost surely, 2^249969347 is an apocalyptic number.

249969347 is a deficient number, since it is larger than the sum of its proper divisors (1).

249969347 is an equidigital number, since it uses as much as digits as its factorization.

249969347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2939328, while the sum is 53.

The square root of 249969347 is about 15810.4189381559. The cubic root of 249969347 is about 629.9347769884.

It can be divided in two parts, 24996 and 9347, that added together give a palindrome (34343).

The spelling of 249969347 in words is "two hundred forty-nine million, nine hundred sixty-nine thousand, three hundred forty-seven".