247344589 has 2 divisors, whose sum is σ = 247344590. Its totient is φ = 247344588.

The previous prime is 247344571. The next prime is 247344607. The reversal of 247344589 is 985443742.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (247344571) and next prime (247344607).

It can be written as a sum of positive squares in only one way, i.e., 221027689 + 26316900 = 14867^2 + 5130^2 .

It is a cyclic number.

It is not a de Polignac number, because 247344589 - 2¹⁵ = 247311821 is a prime.

It is a super-2 number, since 2×247344589² = 122358691415157842, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (247344529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123672294 + 123672295.

It is an arithmetic number, because the mean of its divisors is an integer number (123672295).

Almost surely, 2^247344589 is an apocalyptic number.

It is an amenable number.

247344589 is a deficient number, since it is larger than the sum of its proper divisors (1).

247344589 is an equidigital number, since it uses as much as digits as its factorization.

247344589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 967680, while the sum is 46.

The square root of 247344589 is about 15727.1926611204. The cubic root of 247344589 is about 627.7221756819.

The spelling of 247344589 in words is "two hundred forty-seven million, three hundred forty-four thousand, five hundred eighty-nine".