985451 has 2 divisors, whose sum is σ = 985452. Its totient is φ = 985450.

The previous prime is 985447. The next prime is 985463. The reversal of 985451 is 154589.

It is a weak prime.

It is an emirp because it is prime and its reverse (154589) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 985451 - 2² = 985447 is a prime.

It is a super-2 number, since 2×985451² = 1942227346802, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (985471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492725 + 492726.

It is an arithmetic number, because the mean of its divisors is an integer number (492726).

2⁹⁸⁵⁴⁵¹ is an apocalyptic number.

985451 is a deficient number, since it is larger than the sum of its proper divisors (1).

985451 is an equidigital number, since it uses as much as digits as its factorization.

985451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7200, while the sum is 32.

The square root of 985451 is about 992.6988465794. The cubic root of 985451 is about 99.5126622102.

The spelling of 985451 in words is "nine hundred eighty-five thousand, four hundred fifty-one".