9863967 has 4 divisors (see below), whose sum is σ = 13151960. Its totient is φ = 6575976.

The previous prime is 9863951. The next prime is 9864007. The reversal of 9863967 is 7693689.

It is a happy number.

9863967 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 9863967 - 2⁴ = 9863951 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 (9863947) 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, 1643992 + ... + 1643997.

It is an arithmetic number, because the mean of its divisors is an integer number (3287990).

Almost surely, 2^9863967 is an apocalyptic number.

9863967 is a deficient number, since it is larger than the sum of its proper divisors (3287993).

9863967 is a wasteful number, since it uses less digits than its factorization.

9863967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3287992.

The product of its digits is 489888, while the sum is 48.

The square root of 9863967 is about 3140.6953051832. The cubic root of 9863967 is about 214.4620914203.

The spelling of 9863967 in words is "nine million, eight hundred sixty-three thousand, nine hundred sixty-seven".