814987 has 8 divisors (see below), whose sum is σ = 853200. Its totient is φ = 777504.

The previous prime is 814949. The next prime is 814991. The reversal of 814987 is 789418.

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 814987 - 2⁷ = 814859 is a prime.

It is an Ulam number.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a zygodrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (814927) 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, 4464 + ... + 4642.

It is an arithmetic number, because the mean of its divisors is an integer number (106650).

2⁸¹⁴⁹⁸⁷ is an apocalyptic number.

814987 is a deficient number, since it is larger than the sum of its proper divisors (38213).

814987 is a wasteful number, since it uses less digits than its factorization.

814987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365.

The product of its digits is 16128, while the sum is 37.

The square root of 814987 is about 902.7663042006. The cubic root of 814987 is about 93.4078896902.

The spelling of 814987 in words is "eight hundred fourteen thousand, nine hundred eighty-seven".