87899841 has 24 divisors (see below), whose sum is σ = 133521960. Its totient is φ = 55641600.

The previous prime is 87899839. The next prime is 87899863. The reversal of 87899841 is 14899878.

It can be written as a sum of positive squares in 4 ways, for example, as 9216 + 87890625 = 96^2 + 9375^2 .

It is not a de Polignac number, because 87899841 - 2¹ = 87899839 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87899881) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13161 + ... + 18681.

It is an arithmetic number, because the mean of its divisors is an integer number (5563415).

Almost surely, 2^87899841 is an apocalyptic number.

It is an amenable number.

87899841 is a deficient number, since it is larger than the sum of its proper divisors (45622119).

87899841 is a wasteful number, since it uses less digits than its factorization.

87899841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5617 (or 5614 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 54.

The square root of 87899841 is about 9375.4915071158. The cubic root of 87899841 is about 444.6272028221.

The spelling of 87899841 in words is "eighty-seven million, eight hundred ninety-nine thousand, eight hundred forty-one".