801887 has 4 divisors (see below), whose sum is σ = 805200. Its totient is φ = 798576.

The previous prime is 801883. The next prime is 801947. The reversal of 801887 is 788108.

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 801887 - 2² = 801883 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 801887.

It is not an unprimeable number, because it can be changed into a prime (801883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1262 + ... + 1787.

It is an arithmetic number, because the mean of its divisors is an integer number (201300).

2⁸⁰¹⁸⁸⁷ is an apocalyptic number.

801887 is a deficient number, since it is larger than the sum of its proper divisors (3313).

801887 is a wasteful number, since it uses less digits than its factorization.

801887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3312.

The product of its (nonzero) digits is 3584, while the sum is 32.

The square root of 801887 is about 895.4814347601. The cubic root of 801887 is about 92.9047083442.

The spelling of 801887 in words is "eight hundred one thousand, eight hundred eighty-seven".