8621413 has 2 divisors, whose sum is σ = 8621414. Its totient is φ = 8621412.

The previous prime is 8621411. The next prime is 8621429. The reversal of 8621413 is 3141268.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8421604 + 199809 = 2902^2 + 447^2 .

It is a cyclic number.

It is not a de Polignac number, because 8621413 - 2¹ = 8621411 is a prime.

Together with 8621411, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8621411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4310706 + 4310707.

It is an arithmetic number, because the mean of its divisors is an integer number (4310707).

Almost surely, 2^8621413 is an apocalyptic number.

It is an amenable number.

8621413 is a deficient number, since it is larger than the sum of its proper divisors (1).

8621413 is an equidigital number, since it uses as much as digits as its factorization.

8621413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 25.

The square root of 8621413 is about 2936.2242761751. The cubic root of 8621413 is about 205.0498629450.

The spelling of 8621413 in words is "eight million, six hundred twenty-one thousand, four hundred thirteen".