63887385 has 8 divisors (see below), whose sum is σ = 102219840. Its totient is φ = 34073264.

The previous prime is 63887371. The next prime is 63887387. The reversal of 63887385 is 58378836.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 63887385 - 2⁶ = 63887321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63887387) 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, 2129565 + ... + 2129594.

It is an arithmetic number, because the mean of its divisors is an integer number (12777480).

Almost surely, 2^63887385 is an apocalyptic number.

It is an amenable number.

63887385 is a deficient number, since it is larger than the sum of its proper divisors (38332455).

63887385 is a wasteful number, since it uses less digits than its factorization.

63887385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4259167.

The product of its digits is 967680, while the sum is 48.

The square root of 63887385 is about 7992.9584635478. The cubic root of 63887385 is about 399.7652476720.

The spelling of 63887385 in words is "sixty-three million, eight hundred eighty-seven thousand, three hundred eighty-five".