63984494 has 12 divisors (see below), whose sum is σ = 111646584. Its totient is φ = 27421884.

The previous prime is 63984491. The next prime is 63984511. The reversal of 63984494 is 49448936.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63984491) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 326354 + ... + 326549.

It is an arithmetic number, because the mean of its divisors is an integer number (9303882).

Almost surely, 2^63984494 is an apocalyptic number.

63984494 is a deficient number, since it is larger than the sum of its proper divisors (47662090).

63984494 is a wasteful number, since it uses less digits than its factorization.

63984494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652919 (or 652912 counting only the distinct ones).

The product of its digits is 746496, while the sum is 47.

The square root of 63984494 is about 7999.0308162927. The cubic root of 63984494 is about 399.9676932241.

The spelling of 63984494 in words is "sixty-three million, nine hundred eighty-four thousand, four hundred ninety-four".