63967673 has 16 divisors (see below), whose sum is σ = 80175744. Its totient is φ = 49580160.

The previous prime is 63967639. The next prime is 63967679. The reversal of 63967673 is 37676936.

It is not a de Polignac number, because 63967673 - 2¹⁰ = 63966649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63967679) 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, 13061 + ... + 17277.

It is an arithmetic number, because the mean of its divisors is an integer number (5010984).

Almost surely, 2^63967673 is an apocalyptic number.

It is an amenable number.

63967673 is a deficient number, since it is larger than the sum of its proper divisors (16208071).

63967673 is a wasteful number, since it uses less digits than its factorization.

63967673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4432.

The product of its digits is 857304, while the sum is 47.

The square root of 63967673 is about 7997.9793073001. The cubic root of 63967673 is about 399.9326407408.

The spelling of 63967673 in words is "sixty-three million, nine hundred sixty-seven thousand, six hundred seventy-three".