985432453 has 2 divisors, whose sum is σ = 985432454. Its totient is φ = 985432452.

The previous prime is 985432451. The next prime is 985432471. The reversal of 985432453 is 354234589.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 686073249 + 299359204 = 26193^2 + 17302^2 .

It is a cyclic number.

It is not a de Polignac number, because 985432453 - 2¹ = 985432451 is a prime.

Together with 985432451, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (985432451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492716226 + 492716227.

It is an arithmetic number, because the mean of its divisors is an integer number (492716227).

Almost surely, 2^985432453 is an apocalyptic number.

It is an amenable number.

985432453 is a deficient number, since it is larger than the sum of its proper divisors (1).

985432453 is an equidigital number, since it uses as much as digits as its factorization.

985432453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 518400, while the sum is 43.

The square root of 985432453 is about 31391.5984460811. The cubic root of 985432453 is about 995.1203790282.

The spelling of 985432453 in words is "nine hundred eighty-five million, four hundred thirty-two thousand, four hundred fifty-three".