63787396 has 6 divisors (see below), whose sum is σ = 111627950. Its totient is φ = 31893696.

The previous prime is 63787393. The next prime is 63787397. The reversal of 63787396 is 69378736.

It can be written as a sum of positive squares in only one way, i.e., 42719296 + 21068100 = 6536^2 + 4590^2 .

It is not an unprimeable number, because it can be changed into a prime (63787391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7973421 + ... + 7973428.

Almost surely, 2^63787396 is an apocalyptic number.

It is an amenable number.

63787396 is a deficient number, since it is larger than the sum of its proper divisors (47840554).

63787396 is a wasteful number, since it uses less digits than its factorization.

63787396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15946853 (or 15946851 counting only the distinct ones).

The product of its digits is 1143072, while the sum is 49.

The square root of 63787396 is about 7986.7011963639. The cubic root of 63787396 is about 399.5565836365.

The spelling of 63787396 in words is "sixty-three million, seven hundred eighty-seven thousand, three hundred ninety-six".