441615887 has 4 divisors (see below), whose sum is σ = 441792360. Its totient is φ = 441439416.

The previous prime is 441615833. The next prime is 441615907. The reversal of 441615887 is 788516144.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 441615887 - 2⁸ = 441615631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (441611887) 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 3 ways as a sum of consecutive naturals, for example, 84428 + ... + 89505.

It is an arithmetic number, because the mean of its divisors is an integer number (110448090).

Almost surely, 2^441615887 is an apocalyptic number.

441615887 is a deficient number, since it is larger than the sum of its proper divisors (176473).

441615887 is a wasteful number, since it uses less digits than its factorization.

441615887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176472.

The product of its digits is 215040, while the sum is 44.

The square root of 441615887 is about 21014.6588599482. The cubic root of 441615887 is about 761.5204367185.

The spelling of 441615887 in words is "four hundred forty-one million, six hundred fifteen thousand, eight hundred eighty-seven".