994687 has 4 divisors (see below), whose sum is σ = 1053216. Its totient is φ = 936160.

The previous prime is 994667. The next prime is 994691. The reversal of 994687 is 786499.

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 994687 - 2⁷ = 994559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (994657) 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, 29239 + ... + 29272.

It is an arithmetic number, because the mean of its divisors is an integer number (263304).

2⁹⁹⁴⁶⁸⁷ is an apocalyptic number.

994687 is a deficient number, since it is larger than the sum of its proper divisors (58529).

994687 is a wasteful number, since it uses less digits than its factorization.

994687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58528.

The product of its digits is 108864, while the sum is 43.

The square root of 994687 is about 997.3399620992. The cubic root of 994687 is about 99.8225854268.

It can be divided in two parts, 994 and 687, that added together give a square (1681 = 41²).

The spelling of 994687 in words is "nine hundred ninety-four thousand, six hundred eighty-seven".