994857 has 8 divisors (see below), whose sum is σ = 1404576. Its totient is φ = 624192.

The previous prime is 994853. The next prime is 994867. The reversal of 994857 is 758499.

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

It is not a de Polignac number, because 994857 - 2² = 994853 is a prime.

It is not an unprimeable number, because it can be changed into a prime (994853) 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 7 ways as a sum of consecutive naturals, for example, 9703 + ... + 9804.

It is an arithmetic number, because the mean of its divisors is an integer number (175572).

2⁹⁹⁴⁸⁵⁷ is an apocalyptic number.

It is an amenable number.

994857 is a deficient number, since it is larger than the sum of its proper divisors (409719).

994857 is a wasteful number, since it uses less digits than its factorization.

994857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19527.

The product of its digits is 90720, while the sum is 42.

The square root of 994857 is about 997.4251851643. The cubic root of 994857 is about 99.8282719302.

The spelling of 994857 in words is "nine hundred ninety-four thousand, eight hundred fifty-seven".