63894518 has 8 divisors (see below), whose sum is σ = 95880648. Its totient is φ = 31934304.

The previous prime is 63894497. The next prime is 63894539. The reversal of 63894518 is 81549836.

It is an interprime number because it is at equal distance from previous prime (63894497) and next prime (63894539).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1805 + ... + 11447.

It is an arithmetic number, because the mean of its divisors is an integer number (11985081).

Almost surely, 2^63894518 is an apocalyptic number.

63894518 is a deficient number, since it is larger than the sum of its proper divisors (31986130).

63894518 is a wasteful number, since it uses less digits than its factorization.

63894518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12958.

The product of its digits is 207360, while the sum is 44.

The square root of 63894518 is about 7993.4046563401. The cubic root of 63894518 is about 399.7801249929.

The spelling of 63894518 in words is "sixty-three million, eight hundred ninety-four thousand, five hundred eighteen".