984345653 has 2 divisors, whose sum is σ = 984345654. Its totient is φ = 984345652.

The previous prime is 984345647. The next prime is 984345683. The reversal of 984345653 is 356543489.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 967023409 + 17322244 = 31097^2 + 4162^2 .

It is an emirp because it is prime and its reverse (356543489) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-984345653 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 984345598 and 984345607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (984345623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492172826 + 492172827.

It is an arithmetic number, because the mean of its divisors is an integer number (492172827).

Almost surely, 2^984345653 is an apocalyptic number.

It is an amenable number.

984345653 is a deficient number, since it is larger than the sum of its proper divisors (1).

984345653 is an equidigital number, since it uses as much as digits as its factorization.

984345653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1555200, while the sum is 47.

The square root of 984345653 is about 31374.2833065554. The cubic root of 984345653 is about 994.7544162977.

The spelling of 984345653 in words is "nine hundred eighty-four million, three hundred forty-five thousand, six hundred fifty-three".