985430357 has 2 divisors, whose sum is σ = 985430358. Its totient is φ = 985430356.

The previous prime is 985430309. The next prime is 985430363. The reversal of 985430357 is 753034589.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 515017636 + 470412721 = 22694^2 + 21689^2 .

It is an emirp because it is prime and its reverse (753034589) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 985430357 - 2²⁴ = 968653141 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (985430057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492715178 + 492715179.

It is an arithmetic number, because the mean of its divisors is an integer number (492715179).

Almost surely, 2^985430357 is an apocalyptic number.

It is an amenable number.

985430357 is a deficient number, since it is larger than the sum of its proper divisors (1).

985430357 is an equidigital number, since it uses as much as digits as its factorization.

985430357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 453600, while the sum is 44.

The square root of 985430357 is about 31391.5650613345. The cubic root of 985430357 is about 995.1196734924.

The spelling of 985430357 in words is "nine hundred eighty-five million, four hundred thirty thousand, three hundred fifty-seven".