63784394 has 8 divisors (see below), whose sum is σ = 97901760. Its totient is φ = 31150476.

The previous prime is 63784393. The next prime is 63784403. The reversal of 63784394 is 49348736.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (63784393) 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, 370754 + ... + 370925.

It is an arithmetic number, because the mean of its divisors is an integer number (12237720).

Almost surely, 2^63784394 is an apocalyptic number.

63784394 is a deficient number, since it is larger than the sum of its proper divisors (34117366).

63784394 is a wasteful number, since it uses less digits than its factorization.

63784394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741724.

The product of its digits is 435456, while the sum is 44.

The square root of 63784394 is about 7986.5132567348. The cubic root of 63784394 is about 399.5503154824.

The spelling of 63784394 in words is "sixty-three million, seven hundred eighty-four thousand, three hundred ninety-four".