63394894 has 4 divisors (see below), whose sum is σ = 95092344. Its totient is φ = 31697446.

The previous prime is 63394889. The next prime is 63394909. The reversal of 63394894 is 49849336.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15848722 + ... + 15848725.

It is an arithmetic number, because the mean of its divisors is an integer number (23773086).

Almost surely, 2^63394894 is an apocalyptic number.

63394894 is a deficient number, since it is larger than the sum of its proper divisors (31697450).

63394894 is a wasteful number, since it uses less digits than its factorization.

63394894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31697449.

The product of its digits is 559872, while the sum is 46.

The square root of 63394894 is about 7962.0910570026. The cubic root of 63394894 is about 398.7353684814.

The spelling of 63394894 in words is "sixty-three million, three hundred ninety-four thousand, eight hundred ninety-four".