9967385 has 4 divisors (see below), whose sum is σ = 11960868. Its totient is φ = 7973904.

The previous prime is 9967379. The next prime is 9967409. The reversal of 9967385 is 5837699.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7198489 + 2768896 = 2683^2 + 1664^2 .

It is a cyclic number.

It is not a de Polignac number, because 9967385 - 2⁸ = 9967129 is a prime.

It is a d-powerful number, because it can be written as 9³ + 9⁷ + 6⁷ + 7⁶ + 3¹⁴ + 8 + 5⁵ .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 996734 + ... + 996743.

It is an arithmetic number, because the mean of its divisors is an integer number (2990217).

Almost surely, 2^9967385 is an apocalyptic number.

It is an amenable number.

9967385 is a deficient number, since it is larger than the sum of its proper divisors (1993483).

9967385 is a wasteful number, since it uses less digits than its factorization.

9967385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1993482.

The product of its digits is 408240, while the sum is 47.

The square root of 9967385 is about 3157.1165642086. The cubic root of 9967385 is about 215.2089909433.

The spelling of 9967385 in words is "nine million, nine hundred sixty-seven thousand, three hundred eighty-five".