63393671 has 32 divisors (see below), whose sum is σ = 76204800. Its totient is φ = 52116480.

The previous prime is 63393661. The next prime is 63393679. The reversal of 63393671 is 17639336.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63393671 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 (63393679) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 653495 + ... + 653591.

It is an arithmetic number, because the mean of its divisors is an integer number (2381400).

Almost surely, 2^63393671 is an apocalyptic number.

63393671 is a deficient number, since it is larger than the sum of its proper divisors (12811129).

63393671 is a wasteful number, since it uses less digits than its factorization.

63393671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239.

The product of its digits is 61236, while the sum is 38.

The square root of 63393671 is about 7962.0142551995. The cubic root of 63393671 is about 398.7328043606.

The spelling of 63393671 in words is "sixty-three million, three hundred ninety-three thousand, six hundred seventy-one".