994657 has 2 divisors, whose sum is σ = 994658. Its totient is φ = 994656.

The previous prime is 994621. The next prime is 994663. The reversal of 994657 is 756499.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 938961 + 55696 = 969^2 + 236^2 .

It is a cyclic number.

It is not a de Polignac number, because 994657 - 2¹¹ = 992609 is a prime.

It is a Chen prime.

994657 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (994667) 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 as a sum of consecutive naturals, namely, 497328 + 497329.

It is an arithmetic number, because the mean of its divisors is an integer number (497329).

2⁹⁹⁴⁶⁵⁷ is an apocalyptic number.

It is an amenable number.

994657 is a deficient number, since it is larger than the sum of its proper divisors (1).

994657 is an equidigital number, since it uses as much as digits as its factorization.

994657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 68040, while the sum is 40.

The square root of 994657 is about 997.3249219788. The cubic root of 994657 is about 99.8215818590.

The spelling of 994657 in words is "nine hundred ninety-four thousand, six hundred fifty-seven".