985455 has 24 divisors (see below), whose sum is σ = 1740960. Its totient is φ = 515520.

The previous prime is 985451. The next prime is 985463. The reversal of 985455 is 554589.

It is a happy number.

It is not a de Polignac number, because 985455 - 2² = 985451 is a prime.

It is a super-2 number, since 2×985455² = 1942243114050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (985451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2566 + ... + 2924.

It is an arithmetic number, because the mean of its divisors is an integer number (72540).

2⁹⁸⁵⁴⁵⁵ is an apocalyptic number.

985455 is a deficient number, since it is larger than the sum of its proper divisors (755505).

985455 is a wasteful number, since it uses less digits than its factorization.

985455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431 (or 428 counting only the distinct ones).

The product of its digits is 36000, while the sum is 36.

The square root of 985455 is about 992.7008612870. The cubic root of 985455 is about 99.5127968525.

The spelling of 985455 in words is "nine hundred eighty-five thousand, four hundred fifty-five".