9985071 has 8 divisors (see below), whose sum is σ = 13330224. Its totient is φ = 6648320.

The previous prime is 9985067. The next prime is 9985091. The reversal of 9985071 is 1705899.

It is a happy number.

9985071 is digitally balanced in base 2, base 3 and base 4, because in such bases 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 9985071 - 2² = 9985067 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9985021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1615 + ... + 4751.

It is an arithmetic number, because the mean of its divisors is an integer number (1666278).

Almost surely, 2^9985071 is an apocalyptic number.

9985071 is a deficient number, since it is larger than the sum of its proper divisors (3345153).

9985071 is a wasteful number, since it uses less digits than its factorization.

9985071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4201.

The product of its (nonzero) digits is 22680, while the sum is 39.

The square root of 9985071 is about 3159.9162963598. The cubic root of 9985071 is about 215.3362037551.

The spelling of 9985071 in words is "nine million, nine hundred eighty-five thousand, seventy-one".