9964871 has 4 divisors (see below), whose sum is σ = 11388432. Its totient is φ = 8541312.

The previous prime is 9964859. The next prime is 9964879. The reversal of 9964871 is 1784699.

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

It is a cyclic number.

It is not a de Polignac number, because 9964871 - 2¹⁴ = 9948487 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 (9964879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 711770 + ... + 711783.

It is an arithmetic number, because the mean of its divisors is an integer number (2847108).

Almost surely, 2^9964871 is an apocalyptic number.

9964871 is a deficient number, since it is larger than the sum of its proper divisors (1423561).

9964871 is a wasteful number, since it uses less digits than its factorization.

9964871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1423560.

The product of its digits is 108864, while the sum is 44.

The square root of 9964871 is about 3156.7183909877. The cubic root of 9964871 is about 215.1908958965.

The spelling of 9964871 in words is "nine million, nine hundred sixty-four thousand, eight hundred seventy-one".