985059497 has 2 divisors, whose sum is σ = 985059498. Its totient is φ = 985059496.

The previous prime is 985059469. The next prime is 985059499. The reversal of 985059497 is 794950589.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 548918041 + 436141456 = 23429^2 + 20884^2 .

It is a cyclic number.

It is not a de Polignac number, because 985059497 - 2⁸ = 985059241 is a prime.

Together with 985059499, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (985059499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492529748 + 492529749.

It is an arithmetic number, because the mean of its divisors is an integer number (492529749).

Almost surely, 2^985059497 is an apocalyptic number.

It is an amenable number.

985059497 is a deficient number, since it is larger than the sum of its proper divisors (1).

985059497 is an equidigital number, since it uses as much as digits as its factorization.

985059497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4082400, while the sum is 56.

The square root of 985059497 is about 31385.6575046629. The cubic root of 985059497 is about 994.9948223260.

The spelling of 985059497 in words is "nine hundred eighty-five million, fifty-nine thousand, four hundred ninety-seven".