9985451 has 8 divisors (see below), whose sum is σ = 11568864. Its totient is φ = 8441280.

The previous prime is 9985447. The next prime is 9985453. The reversal of 9985451 is 1545899.

It is a happy number.

9985451 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9985451 - 2² = 9985447 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9985399 and 9985408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9985453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9260 + ... + 10281.

It is an arithmetic number, because the mean of its divisors is an integer number (1446108).

Almost surely, 2^9985451 is an apocalyptic number.

9985451 is a deficient number, since it is larger than the sum of its proper divisors (1583413).

9985451 is a wasteful number, since it uses less digits than its factorization.

9985451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19621.

The product of its digits is 64800, while the sum is 41.

The square root of 9985451 is about 3159.9764239627. The cubic root of 9985451 is about 215.3389353905.

The spelling of 9985451 in words is "nine million, nine hundred eighty-five thousand, four hundred fifty-one".