9865955 has 8 divisors (see below), whose sum is σ = 12915504. Its totient is φ = 7175200.

The previous prime is 9865949. The next prime is 9865979. The reversal of 9865955 is 5595689.

9865955 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 9865955 - 2¹⁴ = 9849571 is a prime.

It is a Duffinian 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, 89636 + ... + 89745.

It is an arithmetic number, because the mean of its divisors is an integer number (1614438).

Almost surely, 2^9865955 is an apocalyptic number.

9865955 is a deficient number, since it is larger than the sum of its proper divisors (3049549).

9865955 is a wasteful number, since it uses less digits than its factorization.

9865955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179397.

The product of its digits is 486000, while the sum is 47.

The square root of 9865955 is about 3141.0117796659. The cubic root of 9865955 is about 214.4764981324.

It can be divided in two parts, 98659 and 55, that multiplied together give a palindrome (5426245).

The spelling of 9865955 in words is "nine million, eight hundred sixty-five thousand, nine hundred fifty-five".