63491883 has 16 divisors (see below), whose sum is σ = 104192256. Its totient is φ = 33490080.

The previous prime is 63491881. The next prime is 63491887. The reversal of 63491883 is 38819436.

It is a happy number.

It is not a de Polignac number, because 63491883 - 2¹ = 63491881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63491881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116013 + ... + 116558.

It is an arithmetic number, because the mean of its divisors is an integer number (6512016).

Almost surely, 2^63491883 is an apocalyptic number.

63491883 is a deficient number, since it is larger than the sum of its proper divisors (40700373).

63491883 is a wasteful number, since it uses less digits than its factorization.

63491883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232594.

The product of its digits is 124416, while the sum is 42.

The square root of 63491883 is about 7968.1794031008. The cubic root of 63491883 is about 398.9386090308.

The spelling of 63491883 in words is "sixty-three million, four hundred ninety-one thousand, eight hundred eighty-three".