8749613 has 2 divisors, whose sum is σ = 8749614. Its totient is φ = 8749612.

The previous prime is 8749607. The next prime is 8749627. The reversal of 8749613 is 3169478.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8655364 + 94249 = 2942^2 + 307^2 .

It is a cyclic number.

It is not a de Polignac number, because 8749613 - 2⁶ = 8749549 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8749603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4374806 + 4374807.

It is an arithmetic number, because the mean of its divisors is an integer number (4374807).

Almost surely, 2^8749613 is an apocalyptic number.

It is an amenable number.

8749613 is a deficient number, since it is larger than the sum of its proper divisors (1).

8749613 is an equidigital number, since it uses as much as digits as its factorization.

8749613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 38.

The square root of 8749613 is about 2957.9744758872. The cubic root of 8749613 is about 206.0612269696.

The spelling of 8749613 in words is "eight million, seven hundred forty-nine thousand, six hundred thirteen".