63920583 has 20 divisors (see below), whose sum is σ = 95715840. Its totient is φ = 42511392.

The previous prime is 63920581. The next prime is 63920609. The reversal of 63920583 is 38502936.

It is not a de Polignac number, because 63920583 - 2¹ = 63920581 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63920581) 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 19 ways as a sum of consecutive naturals, for example, 49338 + ... + 50616.

It is an arithmetic number, because the mean of its divisors is an integer number (4785792).

Almost surely, 2^63920583 is an apocalyptic number.

63920583 is a deficient number, since it is larger than the sum of its proper divisors (31795257).

63920583 is a wasteful number, since it uses less digits than its factorization.

63920583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1908 (or 1899 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 63920583 is about 7995.0348967343. The cubic root of 63920583 is about 399.8344794335.

The spelling of 63920583 in words is "sixty-three million, nine hundred twenty thousand, five hundred eighty-three".