887421809 has 8 divisors (see below), whose sum is σ = 936294240. Its totient is φ = 838766016.

The previous prime is 887421803. The next prime is 887421827. The reversal of 887421809 is 908124788.

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 887421809 - 2¹⁶ = 887356273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (887421803) 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, 45707 + ... + 62160.

It is an arithmetic number, because the mean of its divisors is an integer number (117036780).

Almost surely, 2^887421809 is an apocalyptic number.

It is an amenable number.

887421809 is a deficient number, since it is larger than the sum of its proper divisors (48872431).

887421809 is a wasteful number, since it uses less digits than its factorization.

887421809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108319.

The product of its (nonzero) digits is 258048, while the sum is 47.

The square root of 887421809 is about 29789.6258620346. The cubic root of 887421809 is about 960.9704484187.

The spelling of 887421809 in words is "eight hundred eighty-seven million, four hundred twenty-one thousand, eight hundred nine".