63756396 has 144 divisors (see below), whose sum is σ = 187125120. Its totient is φ = 18817920.

The previous prime is 63756383. The next prime is 63756421. The reversal of 63756396 is 69365736.

63756396 is a `hidden beast` number, since 6 + 3 + 7 + 5 + 639 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 716320 + ... + 716408.

It is an arithmetic number, because the mean of its divisors is an integer number (1299480).

Almost surely, 2^63756396 is an apocalyptic number.

63756396 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63756396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93562560).

63756396 is an abundant number, since it is smaller than the sum of its proper divisors (123368724).

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

63756396 is a wasteful number, since it uses less digits than its factorization.

63756396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186 (or 172 counting only the distinct ones).

The product of its digits is 612360, while the sum is 45.

The square root of 63756396 is about 7984.7602343464. The cubic root of 63756396 is about 399.4918463898.

The spelling of 63756396 in words is "sixty-three million, seven hundred fifty-six thousand, three hundred ninety-six".