63900841 has 8 divisors (see below), whose sum is σ = 67823784. Its totient is φ = 59996160.

The previous prime is 63900803. The next prime is 63900899. The reversal of 63900841 is 14800936.

It can be written as a sum of positive squares in 4 ways, for example, as 14409616 + 49491225 = 3796^2 + 7035^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 63900841 - 2⁹ = 63900329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63900041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3021 + ... + 11701.

It is an arithmetic number, because the mean of its divisors is an integer number (8477973).

Almost surely, 2^63900841 is an apocalyptic number.

It is an amenable number.

63900841 is a deficient number, since it is larger than the sum of its proper divisors (3922943).

63900841 is a wasteful number, since it uses less digits than its factorization.

63900841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9131.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 63900841 is about 7993.8001601241. The cubic root of 63900841 is about 399.7933119685.

The spelling of 63900841 in words is "sixty-three million, nine hundred thousand, eight hundred forty-one".