9872365 has 8 divisors (see below), whose sum is σ = 11869848. Its totient is φ = 7882560.

The previous prime is 9872347. The next prime is 9872371. The reversal of 9872365 is 5632789.

It can be written as a sum of positive squares in 4 ways, for example, as 100489 + 9771876 = 317^2 + 3126^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9872365 - 2¹¹ = 9870317 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

9872365 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1455 + ... + 4675.

It is an arithmetic number, because the mean of its divisors is an integer number (1483731).

Almost surely, 2^9872365 is an apocalyptic number.

It is an amenable number.

9872365 is a deficient number, since it is larger than the sum of its proper divisors (1997483).

9872365 is a wasteful number, since it uses less digits than its factorization.

9872365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3839.

The product of its digits is 90720, while the sum is 40.

The square root of 9872365 is about 3142.0319858334. The cubic root of 9872365 is about 214.5229371820.

The spelling of 9872365 in words is "nine million, eight hundred seventy-two thousand, three hundred sixty-five".