63147287 has 8 divisors (see below), whose sum is σ = 73392000. Its totient is φ = 53208504.

The previous prime is 63147281. The next prime is 63147353. The reversal of 63147287 is 78274136.

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 63147287 - 2¹⁰ = 63146263 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63147287.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63147281) 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, 76037 + ... + 76862.

It is an arithmetic number, because the mean of its divisors is an integer number (9174000).

Almost surely, 2^63147287 is an apocalyptic number.

63147287 is a deficient number, since it is larger than the sum of its proper divisors (10244713).

63147287 is a wasteful number, since it uses less digits than its factorization.

63147287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152965.

The product of its digits is 56448, while the sum is 38.

The square root of 63147287 is about 7946.5267255575. The cubic root of 63147287 is about 398.2155659083.

The spelling of 63147287 in words is "sixty-three million, one hundred forty-seven thousand, two hundred eighty-seven".