63940583 has 4 divisors (see below), whose sum is σ = 73074960. Its totient is φ = 54806208.

The previous prime is 63940573. The next prime is 63940637. The reversal of 63940583 is 38504936.

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 63940583 - 2¹² = 63936487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63940523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4567178 + ... + 4567191.

It is an arithmetic number, because the mean of its divisors is an integer number (18268740).

Almost surely, 2^63940583 is an apocalyptic number.

63940583 is a deficient number, since it is larger than the sum of its proper divisors (9134377).

63940583 is an equidigital number, since it uses as much as digits as its factorization.

63940583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9134376.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 63940583 is about 7996.2855751905. The cubic root of 63940583 is about 399.8761762565.

The spelling of 63940583 in words is "sixty-three million, nine hundred forty thousand, five hundred eighty-three".