63411389 has 4 divisors (see below), whose sum is σ = 63431100. Its totient is φ = 63391680.

The previous prime is 63411349. The next prime is 63411407. The reversal of 63411389 is 98311436.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 44662489 + 18748900 = 6683^2 + 4330^2 .

It is a cyclic number.

It is not a de Polignac number, because 63411389 - 2²⁰ = 62362813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63411329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3782 + ... + 11879.

It is an arithmetic number, because the mean of its divisors is an integer number (15857775).

Almost surely, 2^63411389 is an apocalyptic number.

It is an amenable number.

63411389 is a deficient number, since it is larger than the sum of its proper divisors (19711).

63411389 is a wasteful number, since it uses less digits than its factorization.

63411389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19710.

The product of its digits is 15552, while the sum is 35.

The square root of 63411389 is about 7963.1268356092. The cubic root of 63411389 is about 398.7699483932.

The spelling of 63411389 in words is "sixty-three million, four hundred eleven thousand, three hundred eighty-nine".