63849413 has 2 divisors, whose sum is σ = 63849414. Its totient is φ = 63849412.

The previous prime is 63849397. The next prime is 63849419. The reversal of 63849413 is 31494836.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33895684 + 29953729 = 5822^2 + 5473^2 .

It is a cyclic number.

It is not a de Polignac number, because 63849413 - 2⁴ = 63849397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63849419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31924706 + 31924707.

It is an arithmetic number, because the mean of its divisors is an integer number (31924707).

Almost surely, 2^63849413 is an apocalyptic number.

It is an amenable number.

63849413 is a deficient number, since it is larger than the sum of its proper divisors (1).

63849413 is an equidigital number, since it uses as much as digits as its factorization.

63849413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 38.

The square root of 63849413 is about 7990.5827697359. The cubic root of 63849413 is about 399.6860307060.

The spelling of 63849413 in words is "sixty-three million, eight hundred forty-nine thousand, four hundred thirteen".