63904039 has 2 divisors, whose sum is σ = 63904040. Its totient is φ = 63904038.

The previous prime is 63904033. The next prime is 63904073. The reversal of 63904039 is 93040936.

It is an a-pointer prime, because the next prime (63904073) can be obtained adding 63904039 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63904039 - 2⁵ = 63904007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 63903995 and 63904013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63904033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31952019 + 31952020.

It is an arithmetic number, because the mean of its divisors is an integer number (31952020).

Almost surely, 2^63904039 is an apocalyptic number.

63904039 is a deficient number, since it is larger than the sum of its proper divisors (1).

63904039 is an equidigital number, since it uses as much as digits as its factorization.

63904039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 34.

The square root of 63904039 is about 7994.0001876407. Note that the first 3 decimals coincide. The cubic root of 63904039 is about 399.7999812479.

The spelling of 63904039 in words is "sixty-three million, nine hundred four thousand, thirty-nine".