63339389 has 2 divisors, whose sum is σ = 63339390. Its totient is φ = 63339388.

The previous prime is 63339377. The next prime is 63339403. The reversal of 63339389 is 98393336.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55995289 + 7344100 = 7483^2 + 2710^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63339389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63339349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31669694 + 31669695.

It is an arithmetic number, because the mean of its divisors is an integer number (31669695).

Almost surely, 2^63339389 is an apocalyptic number.

It is an amenable number.

63339389 is a deficient number, since it is larger than the sum of its proper divisors (1).

63339389 is an equidigital number, since it uses as much as digits as its factorization.

63339389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 314928, while the sum is 44.

The square root of 63339389 is about 7958.6047143956. The cubic root of 63339389 is about 398.6189644227.

The spelling of 63339389 in words is "sixty-three million, three hundred thirty-nine thousand, three hundred eighty-nine".