9215 has 8 divisors (see below), whose sum is σ = 11760. Its totient is φ = 6912.

The previous prime is 9209. The next prime is 9221. The reversal of 9215 is 5129.

It is a Cunningham number, because it is equal to 96²-1.

It is an interprime number because it is at equal distance from previous prime (9209) and next prime (9221).

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

It is a cyclic number.

It is not a de Polignac number, because 9215 - 2⁴ = 9199 is a prime.

It is a plaindrome in base 9 and base 16.

It is a junction number, because it is equal to n+sod(n) for n = 9193 and 9202.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 47 + ... + 143.

It is an arithmetic number, because the mean of its divisors is an integer number (1470).

2⁹²¹⁵ is an apocalyptic number.

9215 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

9215 is a deficient number, since it is larger than the sum of its proper divisors (2545).

9215 is a wasteful number, since it uses less digits than its factorization.

9215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121.

The product of its digits is 90, while the sum is 17.

The square root of 9215 is about 95.9947915254. The cubic root of 9215 is about 20.9651728099.

The spelling of 9215 in words is "nine thousand, two hundred fifteen".