63473861 has 16 divisors (see below), whose sum is σ = 70519680. Its totient is φ = 56652480.

The previous prime is 63473843. The next prime is 63473867. The reversal of 63473861 is 16837436.

It is a cyclic number.

It is not a de Polignac number, because 63473861 - 2⁶ = 63473797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63473867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 200075 + ... + 200391.

It is an arithmetic number, because the mean of its divisors is an integer number (4407480).

Almost surely, 2^63473861 is an apocalyptic number.

It is an amenable number.

63473861 is a deficient number, since it is larger than the sum of its proper divisors (7045819).

63473861 is a wasteful number, since it uses less digits than its factorization.

63473861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604.

The product of its digits is 72576, while the sum is 38.

The square root of 63473861 is about 7967.0484497083. The cubic root of 63473861 is about 398.9008595756.

The spelling of 63473861 in words is "sixty-three million, four hundred seventy-three thousand, eight hundred sixty-one".