63677634 has 16 divisors (see below), whose sum is σ = 128968320. Its totient is φ = 20957040.

The previous prime is 63677617. The next prime is 63677641. The reversal of 63677634 is 43677636.

63677634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66697 + ... + 67644.

It is an arithmetic number, because the mean of its divisors is an integer number (8060520).

Almost surely, 2^63677634 is an apocalyptic number.

63677634 is an abundant number, since it is smaller than the sum of its proper divisors (65290686).

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

63677634 is a wasteful number, since it uses less digits than its factorization.

63677634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134425.

The product of its digits is 381024, while the sum is 42.

The square root of 63677634 is about 7979.8266898473. The cubic root of 63677634 is about 399.3272733982.

The spelling of 63677634 in words is "sixty-three million, six hundred seventy-seven thousand, six hundred thirty-four".