985700693 has 2 divisors, whose sum is σ = 985700694. Its totient is φ = 985700692.

The previous prime is 985700671. The next prime is 985700699. The reversal of 985700693 is 396007589.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 936237604 + 49463089 = 30598^2 + 7033^2 .

It is a cyclic number.

It is not a de Polignac number, because 985700693 - 2⁶ = 985700629 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (985700699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492850346 + 492850347.

It is an arithmetic number, because the mean of its divisors is an integer number (492850347).

Almost surely, 2^985700693 is an apocalyptic number.

It is an amenable number.

985700693 is a deficient number, since it is larger than the sum of its proper divisors (1).

985700693 is an equidigital number, since it uses as much as digits as its factorization.

985700693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 985700693 is about 31395.8706361203. The cubic root of 985700693 is about 995.2106632053.

The spelling of 985700693 in words is "nine hundred eighty-five million, seven hundred thousand, six hundred ninety-three".