985807 has 2 divisors, whose sum is σ = 985808. Its totient is φ = 985806.

The previous prime is 985799. The next prime is 985819. The reversal of 985807 is 708589.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 985807 - 2³ = 985799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (985867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492903 + 492904.

It is an arithmetic number, because the mean of its divisors is an integer number (492904).

2⁹⁸⁵⁸⁰⁷ is an apocalyptic number.

985807 is a deficient number, since it is larger than the sum of its proper divisors (1).

985807 is an equidigital number, since it uses as much as digits as its factorization.

985807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 37.

The square root of 985807 is about 992.8781395519. The cubic root of 985807 is about 99.5246439467.

The spelling of 985807 in words is "nine hundred eighty-five thousand, eight hundred seven".