763677638 has 16 divisors (see below), whose sum is σ = 1224681120. Its totient is φ = 355886976.

The previous prime is 763677637. The next prime is 763677661. The reversal of 763677638 is 836776367.

763677638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 763677638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (763677637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105533 + ... + 112536.

It is an arithmetic number, because the mean of its divisors is an integer number (76542570).

Almost surely, 2^763677638 is an apocalyptic number.

763677638 is a deficient number, since it is larger than the sum of its proper divisors (461003482).

763677638 is a wasteful number, since it uses less digits than its factorization.

763677638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218191.

The product of its digits is 5334336, while the sum is 53.

The square root of 763677638 is about 27634.7179830010. The cubic root of 763677638 is about 914.0501507084.

The spelling of 763677638 in words is "seven hundred sixty-three million, six hundred seventy-seven thousand, six hundred thirty-eight".