887618421 has 24 divisors (see below), whose sum is σ = 1351041120. Its totient is φ = 560000736.

The previous prime is 887618371. The next prime is 887618423. The reversal of 887618421 is 124816788.

887618421 is a `hidden beast` number, since 8 + 8 + 7 + 618 + 4 + 21 = 666.

It is not a de Polignac number, because 887618421 - 2¹⁰ = 887617397 is a prime.

It is a super-2 number, since 2×887618421² = 1575732922597066482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (887618423) 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, 200791 + ... + 205163.

It is an arithmetic number, because the mean of its divisors is an integer number (56293380).

Almost surely, 2^887618421 is an apocalyptic number.

It is an amenable number.

887618421 is a deficient number, since it is larger than the sum of its proper divisors (463422699).

887618421 is a wasteful number, since it uses less digits than its factorization.

887618421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5585 (or 5582 counting only the distinct ones).

The product of its digits is 172032, while the sum is 45.

The square root of 887618421 is about 29792.9256871493. The cubic root of 887618421 is about 961.0414121807.

The spelling of 887618421 in words is "eight hundred eighty-seven million, six hundred eighteen thousand, four hundred twenty-one".