249467389 has 2 divisors, whose sum is σ = 249467390. Its totient is φ = 249467388.

The previous prime is 249467371. The next prime is 249467417. The reversal of 249467389 is 983764942.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 208571364 + 40896025 = 14442^2 + 6395^2 .

It is a cyclic number.

It is not a de Polignac number, because 249467389 - 2¹¹ = 249465341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (249467189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124733694 + 124733695.

It is an arithmetic number, because the mean of its divisors is an integer number (124733695).

Almost surely, 2^249467389 is an apocalyptic number.

It is an amenable number.

249467389 is a deficient number, since it is larger than the sum of its proper divisors (1).

249467389 is an equidigital number, since it uses as much as digits as its factorization.

249467389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2612736, while the sum is 52.

The square root of 249467389 is about 15794.5366820303. The cubic root of 249467389 is about 629.5128416685.

The spelling of 249467389 in words is "two hundred forty-nine million, four hundred sixty-seven thousand, three hundred eighty-nine".