63994353 has 4 divisors (see below), whose sum is σ = 85325808. Its totient is φ = 42662900.

The previous prime is 63994331. The next prime is 63994367. The reversal of 63994353 is 35349936.

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 63994353 - 2⁹ = 63993841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63994393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10665723 + ... + 10665728.

It is an arithmetic number, because the mean of its divisors is an integer number (21331452).

Almost surely, 2^63994353 is an apocalyptic number.

It is an amenable number.

63994353 is a deficient number, since it is larger than the sum of its proper divisors (21331455).

63994353 is a wasteful number, since it uses less digits than its factorization.

63994353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21331454.

The product of its digits is 262440, while the sum is 42.

The square root of 63994353 is about 7999.6470547144. The cubic root of 63994353 is about 399.9882350706.

The spelling of 63994353 in words is "sixty-three million, nine hundred ninety-four thousand, three hundred fifty-three".