63889474 has 8 divisors (see below), whose sum is σ = 104546448. Its totient is φ = 29040660.

The previous prime is 63889453. The next prime is 63889493. The reversal of 63889474 is 47498836.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1452012 + ... + 1452055.

It is an arithmetic number, because the mean of its divisors is an integer number (13068306).

Almost surely, 2^63889474 is an apocalyptic number.

63889474 is a deficient number, since it is larger than the sum of its proper divisors (40656974).

63889474 is a wasteful number, since it uses less digits than its factorization.

63889474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2904080.

The product of its digits is 1161216, while the sum is 49.

The square root of 63889474 is about 7993.0891400009. The cubic root of 63889474 is about 399.7696048206.

The spelling of 63889474 in words is "sixty-three million, eight hundred eighty-nine thousand, four hundred seventy-four".