9897387 has 4 divisors (see below), whose sum is σ = 13196520. Its totient is φ = 6598256.

The previous prime is 9897367. The next prime is 9897397. The reversal of 9897387 is 7837989.

It is a happy number.

9897387 is digitally balanced in base 2, because in such base 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 a cyclic number.

It is not a de Polignac number, because 9897387 - 2¹¹ = 9895339 is a prime.

9897387 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9897367) 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, 1649562 + ... + 1649567.

It is an arithmetic number, because the mean of its divisors is an integer number (3299130).

Almost surely, 2^9897387 is an apocalyptic number.

9897387 is a deficient number, since it is larger than the sum of its proper divisors (3299133).

9897387 is a wasteful number, since it uses less digits than its factorization.

9897387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3299132.

The product of its digits is 762048, while the sum is 51.

The square root of 9897387 is about 3146.0112841501. The cubic root of 9897387 is about 214.7040239607.

The spelling of 9897387 in words is "nine million, eight hundred ninety-seven thousand, three hundred eighty-seven".