63969383 has 2 divisors, whose sum is σ = 63969384. Its totient is φ = 63969382.

The previous prime is 63969379. The next prime is 63969401. The reversal of 63969383 is 38396936.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63969383 - 2² = 63969379 is a prime.

It is a super-2 number, since 2×63969383² = 8184163922801378, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63969313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31984691 + 31984692.

It is an arithmetic number, because the mean of its divisors is an integer number (31984692).

Almost surely, 2^63969383 is an apocalyptic number.

63969383 is a deficient number, since it is larger than the sum of its proper divisors (1).

63969383 is an equidigital number, since it uses as much as digits as its factorization.

63969383 is an evil number, because the sum of its binary digits is even.

The product of its digits is 629856, while the sum is 47.

The square root of 63969383 is about 7998.0862085877. The cubic root of 63969383 is about 399.9362044092.

The spelling of 63969383 in words is "sixty-three million, nine hundred sixty-nine thousand, three hundred eighty-three".