63390965 has 16 divisors (see below), whose sum is σ = 83310336. Its totient is φ = 45921600.

The previous prime is 63390959. The next prime is 63390979. The reversal of 63390965 is 56909336.

It is not a de Polignac number, because 63390965 - 2⁴ = 63390949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12779 + ... + 17031.

It is an arithmetic number, because the mean of its divisors is an integer number (5206896).

Almost surely, 2^63390965 is an apocalyptic number.

It is an amenable number.

63390965 is a deficient number, since it is larger than the sum of its proper divisors (19919371).

63390965 is a wasteful number, since it uses less digits than its factorization.

63390965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4540.

The product of its (nonzero) digits is 131220, while the sum is 41.

The square root of 63390965 is about 7961.8443215124. The cubic root of 63390965 is about 398.7271308904.

The spelling of 63390965 in words is "sixty-three million, three hundred ninety thousand, nine hundred sixty-five".