63776983 has 4 divisors (see below), whose sum is σ = 63945640. Its totient is φ = 63608328.

The previous prime is 63776981. The next prime is 63776989. The reversal of 63776983 is 38967736.

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

It is not a de Polignac number, because 63776983 - 2¹ = 63776981 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 (63776981) 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, 83760 + ... + 84517.

It is an arithmetic number, because the mean of its divisors is an integer number (15986410).

Almost surely, 2^63776983 is an apocalyptic number.

63776983 is a deficient number, since it is larger than the sum of its proper divisors (168657).

63776983 is a wasteful number, since it uses less digits than its factorization.

63776983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168656.

The product of its digits is 1143072, while the sum is 49.

The square root of 63776983 is about 7986.0492735770. The cubic root of 63776983 is about 399.5348405263.

The spelling of 63776983 in words is "sixty-three million, seven hundred seventy-six thousand, nine hundred eighty-three".