63620983 has 4 divisors (see below), whose sum is σ = 65814840. Its totient is φ = 61427128.

The previous prime is 63620941. The next prime is 63620993. The reversal of 63620983 is 38902636.

It is a happy number.

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 63620983 - 2¹⁷ = 63489911 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 (63620993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1096885 + ... + 1096942.

It is an arithmetic number, because the mean of its divisors is an integer number (16453710).

Almost surely, 2^63620983 is an apocalyptic number.

63620983 is a deficient number, since it is larger than the sum of its proper divisors (2193857).

63620983 is a wasteful number, since it uses less digits than its factorization.

63620983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2193856.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 63620983 is about 7976.2762615145. The cubic root of 63620983 is about 399.2088173568.

The spelling of 63620983 in words is "sixty-three million, six hundred twenty thousand, nine hundred eighty-three".