63967061 has 4 divisors (see below), whose sum is σ = 64564992. Its totient is φ = 63369132.

The previous prime is 63967051. The next prime is 63967063. The reversal of 63967061 is 16076936.

63967061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 63967061 - 2⁶ = 63966997 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 (63967063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 298805 + ... + 299018.

It is an arithmetic number, because the mean of its divisors is an integer number (16141248).

Almost surely, 2^63967061 is an apocalyptic number.

It is an amenable number.

63967061 is a deficient number, since it is larger than the sum of its proper divisors (597931).

63967061 is a wasteful number, since it uses less digits than its factorization.

63967061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597930.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 63967061 is about 7997.9410475447. The cubic root of 63967061 is about 399.9313653072.

The spelling of 63967061 in words is "sixty-three million, nine hundred sixty-seven thousand, sixty-one".