887421 has 8 divisors (see below), whose sum is σ = 1188864. Its totient is φ = 588800.

The previous prime is 887401. The next prime is 887423. The reversal of 887421 is 124788.

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 887421 - 2⁹ = 886909 is a prime.

887421 is a lucky number.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (887423) 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, 196 + ... + 1346.

It is an arithmetic number, because the mean of its divisors is an integer number (148608).

2⁸⁸⁷⁴²¹ is an apocalyptic number.

It is an amenable number.

887421 is a deficient number, since it is larger than the sum of its proper divisors (301443).

887421 is a wasteful number, since it uses less digits than its factorization.

887421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1411.

The product of its digits is 3584, while the sum is 30.

The square root of 887421 is about 942.0302542912. The cubic root of 887421 is about 96.0970156402.

The spelling of 887421 in words is "eight hundred eighty-seven thousand, four hundred twenty-one".