63807949 has 2 divisors, whose sum is σ = 63807950. Its totient is φ = 63807948.

The previous prime is 63807941. The next prime is 63807959. The reversal of 63807949 is 94970836.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56355049 + 7452900 = 7507^2 + 2730^2 .

It is a cyclic number.

It is not a de Polignac number, because 63807949 - 2³ = 63807941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 63807899 and 63807908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63807941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31903974 + 31903975.

It is an arithmetic number, because the mean of its divisors is an integer number (31903975).

Almost surely, 2^63807949 is an apocalyptic number.

It is an amenable number.

63807949 is a deficient number, since it is larger than the sum of its proper divisors (1).

63807949 is an equidigital number, since it uses as much as digits as its factorization.

63807949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 63807949 is about 7987.9877941820. The cubic root of 63807949 is about 399.5994928689.

The spelling of 63807949 in words is "sixty-three million, eight hundred seven thousand, nine hundred forty-nine".