63906383 has 4 divisors (see below), whose sum is σ = 67665600. Its totient is φ = 60147168.

The previous prime is 63906347. The next prime is 63906389. The reversal of 63906383 is 38360936.

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

It is a cyclic number.

It is not a de Polignac number, because 63906383 - 2¹² = 63902287 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 (63906389) 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, 1879583 + ... + 1879616.

It is an arithmetic number, because the mean of its divisors is an integer number (16916400).

Almost surely, 2^63906383 is an apocalyptic number.

63906383 is a deficient number, since it is larger than the sum of its proper divisors (3759217).

63906383 is a wasteful number, since it uses less digits than its factorization.

63906383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3759216.

The product of its (nonzero) digits is 69984, while the sum is 38.

The square root of 63906383 is about 7994.1467962504. The cubic root of 63906383 is about 399.8048694089.

The spelling of 63906383 in words is "sixty-three million, nine hundred six thousand, three hundred eighty-three".