985854629 has 2 divisors, whose sum is σ = 985854630. Its totient is φ = 985854628.

The previous prime is 985854613. The next prime is 985854631. The reversal of 985854629 is 926458589.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 920212225 + 65642404 = 30335^2 + 8102^2 .

It is a cyclic number.

It is not a de Polignac number, because 985854629 - 2⁴ = 985854613 is a prime.

Together with 985854631, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (985854029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492927314 + 492927315.

It is an arithmetic number, because the mean of its divisors is an integer number (492927315).

Almost surely, 2^985854629 is an apocalyptic number.

It is an amenable number.

985854629 is a deficient number, since it is larger than the sum of its proper divisors (1).

985854629 is an equidigital number, since it uses as much as digits as its factorization.

985854629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6220800, while the sum is 56.

The square root of 985854629 is about 31398.3220730026. The cubic root of 985854629 is about 995.2624675631.

The spelling of 985854629 in words is "nine hundred eighty-five million, eight hundred fifty-four thousand, six hundred twenty-nine".