63685395 has 12 divisors (see below), whose sum is σ = 110388096. Its totient is φ = 33965520.

The previous prime is 63685381. The next prime is 63685411. The reversal of 63685395 is 59358636.

63685395 is a `hidden beast` number, since 636 + 8 + 5 + 3 + 9 + 5 = 666.

It is not a de Polignac number, because 63685395 - 2⁹ = 63684883 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1415231 = 63685395 / (6 + 3 + 6 + 8 + 5 + 3 + 9 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 63685395.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 707571 + ... + 707660.

It is an arithmetic number, because the mean of its divisors is an integer number (9199008).

Almost surely, 2^63685395 is an apocalyptic number.

63685395 is a deficient number, since it is larger than the sum of its proper divisors (46702701).

63685395 is a wasteful number, since it uses less digits than its factorization.

63685395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1415242 (or 1415239 counting only the distinct ones).

The product of its digits is 583200, while the sum is 45.

The square root of 63685395 is about 7980.3129637878. The cubic root of 63685395 is about 399.3434960124.

The spelling of 63685395 in words is "sixty-three million, six hundred eighty-five thousand, three hundred ninety-five".