994987 has 8 divisors (see below), whose sum is σ = 1143296. Its totient is φ = 848232.

The previous prime is 994963. The next prime is 994991. The reversal of 994987 is 789499.

994987 is nontrivially palindromic in base 9.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-994987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (994907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1918 + ... + 2380.

It is an arithmetic number, because the mean of its divisors is an integer number (142912).

2⁹⁹⁴⁹⁸⁷ is an apocalyptic number.

994987 is a deficient number, since it is larger than the sum of its proper divisors (148309).

994987 is a wasteful number, since it uses less digits than its factorization.

994987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777.

The product of its digits is 163296, while the sum is 46.

The square root of 994987 is about 997.4903508305. The cubic root of 994987 is about 99.8326199957.

The spelling of 994987 in words is "nine hundred ninety-four thousand, nine hundred eighty-seven".