636763146 has 16 divisors (see below), whose sum is σ = 1274292000. Its totient is φ = 212126768.

The previous prime is 636763123. The next prime is 636763177. The reversal of 636763146 is 641367636.

It is a junction number, because it is equal to n+sod(n) for n = 636763098 and 636763107.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20796 + ... + 41303.

It is an arithmetic number, because the mean of its divisors is an integer number (79643250).

Almost surely, 2^636763146 is an apocalyptic number.

636763146 is an abundant number, since it is smaller than the sum of its proper divisors (637528854).

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

636763146 is a wasteful number, since it uses less digits than its factorization.

636763146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63813.

The product of its digits is 326592, while the sum is 42.

The square root of 636763146 is about 25234.1662434090. The cubic root of 636763146 is about 860.3185884718.

The spelling of 636763146 in words is "six hundred thirty-six million, seven hundred sixty-three thousand, one hundred forty-six".