9967387 has 16 divisors (see below), whose sum is σ = 10795680. Its totient is φ = 9184000.

The previous prime is 9967379. The next prime is 9967409. The reversal of 9967387 is 7837699.

It is not a de Polignac number, because 9967387 - 2³ = 9967379 is a prime.

It is a Duffinian number.

9967387 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 9967387.

It is not an unprimeable number, because it can be changed into a prime (9967327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98637 + ... + 98737.

It is an arithmetic number, because the mean of its divisors is an integer number (674730).

Almost surely, 2^9967387 is an apocalyptic number.

9967387 is a deficient number, since it is larger than the sum of its proper divisors (828293).

9967387 is a wasteful number, since it uses less digits than its factorization.

9967387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254.

The product of its digits is 571536, while the sum is 49.

The square root of 9967387 is about 3157.1168809533. The cubic root of 9967387 is about 215.2090053376.

The spelling of 9967387 in words is "nine million, nine hundred sixty-seven thousand, three hundred eighty-seven".