63768894 has 24 divisors (see below), whose sum is σ = 148360968. Its totient is φ = 18219600.

The previous prime is 63768893. The next prime is 63768907. The reversal of 63768894 is 49886736.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63768893) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 108157 + ... + 108744.

It is an arithmetic number, because the mean of its divisors is an integer number (6181707).

Almost surely, 2^63768894 is an apocalyptic number.

63768894 is an abundant number, since it is smaller than the sum of its proper divisors (84592074).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63768894 is a wasteful number, since it uses less digits than its factorization.

63768894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216920 (or 216913 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 51.

The square root of 63768894 is about 7985.5428118569. The cubic root of 63768894 is about 399.5179484658.

The spelling of 63768894 in words is "sixty-three million, seven hundred sixty-eight thousand, eight hundred ninety-four".