63307957 has 6 divisors (see below), whose sum is σ = 65567138. Its totient is φ = 61124112.

The previous prime is 63307901. The next prime is 63307969. The reversal of 63307957 is 75970336.

It can be written as a sum of positive squares in 3 ways, for example, as 20875761 + 42432196 = 4569^2 + 6514^2 .

It is not a de Polignac number, because 63307957 - 2¹⁵ = 63275189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63308957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36798 + ... + 38479.

Almost surely, 2^63307957 is an apocalyptic number.

It is an amenable number.

63307957 is a deficient number, since it is larger than the sum of its proper divisors (2259181).

63307957 is an equidigital number, since it uses as much as digits as its factorization.

63307957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75335 (or 75306 counting only the distinct ones).

The product of its (nonzero) digits is 119070, while the sum is 40.

The square root of 63307957 is about 7956.6297513457. The cubic root of 63307957 is about 398.5530156525.

The spelling of 63307957 in words is "sixty-three million, three hundred seven thousand, nine hundred fifty-seven".