9967071 has 4 divisors (see below), whose sum is σ = 13289432. Its totient is φ = 6644712.

The previous prime is 9967063. The next prime is 9967079. The reversal of 9967071 is 1707699.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (9967063) and next prime (9967079).

It is not a de Polignac number, because 9967071 - 2³ = 9967063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9967079) 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 3 ways as a sum of consecutive naturals, for example, 1661176 + ... + 1661181.

It is an arithmetic number, because the mean of its divisors is an integer number (3322358).

Almost surely, 2^9967071 is an apocalyptic number.

9967071 is a deficient number, since it is larger than the sum of its proper divisors (3322361).

9967071 is a wasteful number, since it uses less digits than its factorization.

9967071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3322360.

The product of its (nonzero) digits is 23814, while the sum is 39.

The square root of 9967071 is about 3157.0668348960. The cubic root of 9967071 is about 215.2067310282.

The spelling of 9967071 in words is "nine million, nine hundred sixty-seven thousand, seventy-one".