63695947 has 8 divisors (see below), whose sum is σ = 75960576. Its totient is φ = 52222632.

The previous prime is 63695941. The next prime is 63695959. The reversal of 63695947 is 74959636.

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

It is not a de Polignac number, because 63695947 - 2¹¹ = 63693899 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 63695947.

It is not an unprimeable number, because it can be changed into a prime (63695941) 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, 197653 + ... + 197974.

It is an arithmetic number, because the mean of its divisors is an integer number (9495072).

Almost surely, 2^63695947 is an apocalyptic number.

63695947 is a deficient number, since it is larger than the sum of its proper divisors (12264629).

63695947 is a wasteful number, since it uses less digits than its factorization.

63695947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395657.

The product of its digits is 1224720, while the sum is 49.

The square root of 63695947 is about 7980.9740633584. The cubic root of 63695947 is about 399.3655504665.

The spelling of 63695947 in words is "sixty-three million, six hundred ninety-five thousand, nine hundred forty-seven".