63165947 has 8 divisors (see below), whose sum is σ = 68429760. Its totient is φ = 58305000.

The previous prime is 63165929. The next prime is 63165959. The reversal of 63165947 is 74956136.

It is not a de Polignac number, because 63165947 - 2¹⁴ = 63149563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63165997) 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, 12179 + ... + 16572.

It is an arithmetic number, because the mean of its divisors is an integer number (8553720).

Almost surely, 2^63165947 is an apocalyptic number.

63165947 is a deficient number, since it is larger than the sum of its proper divisors (5263813).

63165947 is an equidigital number, since it uses as much as digits as its factorization.

63165947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28790 (or 28764 counting only the distinct ones).

The product of its digits is 136080, while the sum is 41.

The square root of 63165947 is about 7947.7007366911. The cubic root of 63165947 is about 398.2547862296.

The spelling of 63165947 in words is "sixty-three million, one hundred sixty-five thousand, nine hundred forty-seven".