63901965 has 8 divisors (see below), whose sum is σ = 102243168. Its totient is φ = 34081040.

The previous prime is 63901939. The next prime is 63901967. The reversal of 63901965 is 56910936.

63901965 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 63901965 - 2⁷ = 63901837 is a prime.

It is a super-2 number, since 2×63901965² = 8166922261722450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63901967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2130051 + ... + 2130080.

It is an arithmetic number, because the mean of its divisors is an integer number (12780396).

Almost surely, 2^63901965 is an apocalyptic number.

It is an amenable number.

63901965 is a deficient number, since it is larger than the sum of its proper divisors (38341203).

63901965 is a wasteful number, since it uses less digits than its factorization.

63901965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4260139.

The product of its (nonzero) digits is 43740, while the sum is 39.

The square root of 63901965 is about 7993.8704642995. The cubic root of 63901965 is about 399.7956560433.

The spelling of 63901965 in words is "sixty-three million, nine hundred one thousand, nine hundred sixty-five".