63807947 has 16 divisors (see below), whose sum is σ = 78336000. Its totient is φ = 51808680.

The previous prime is 63807941. The next prime is 63807949. The reversal of 63807947 is 74970836.

It is not a de Polignac number, because 63807947 - 2⁸ = 63807691 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63807898 and 63807907.

It is not an unprimeable number, because it can be changed into a prime (63807941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1622 + ... + 11412.

It is an arithmetic number, because the mean of its divisors is an integer number (4896000).

Almost surely, 2^63807947 is an apocalyptic number.

63807947 is a deficient number, since it is larger than the sum of its proper divisors (14528053).

63807947 is an equidigital number, since it uses as much as digits as its factorization.

63807947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9831 (or 9817 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 63807947 is about 7987.9876689940. The cubic root of 63807947 is about 399.5994886939.

The spelling of 63807947 in words is "sixty-three million, eight hundred seven thousand, nine hundred forty-seven".