801587 has 4 divisors (see below), whose sum is σ = 807576. Its totient is φ = 795600.

The previous prime is 801571. The next prime is 801607. The reversal of 801587 is 785108.

It is a happy number.

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 801587 - 2⁴ = 801571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (801517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2789 + ... + 3062.

It is an arithmetic number, because the mean of its divisors is an integer number (201894).

2⁸⁰¹⁵⁸⁷ is an apocalyptic number.

801587 is a deficient number, since it is larger than the sum of its proper divisors (5989).

801587 is a wasteful number, since it uses less digits than its factorization.

801587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5988.

The product of its (nonzero) digits is 2240, while the sum is 29.

The square root of 801587 is about 895.3139114300. The cubic root of 801587 is about 92.8931211384.

The spelling of 801587 in words is "eight hundred one thousand, five hundred eighty-seven".