8981215 has 8 divisors (see below), whose sum is σ = 10829808. Its totient is φ = 7150080.

The previous prime is 8981191. The next prime is 8981233. The reversal of 8981215 is 5121898.

8981215 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 8981215 - 2⁷ = 8981087 is a prime.

It is a super-3 number, since 3×8981215³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian 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, 3202 + ... + 5311.

It is an arithmetic number, because the mean of its divisors is an integer number (1353726).

Almost surely, 2^8981215 is an apocalyptic number.

8981215 is a deficient number, since it is larger than the sum of its proper divisors (1848593).

8981215 is a wasteful number, since it uses less digits than its factorization.

8981215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8729.

The product of its digits is 5760, while the sum is 34.

The square root of 8981215 is about 2996.8675312733. The cubic root of 8981215 is about 207.8635615948.

The spelling of 8981215 in words is "eight million, nine hundred eighty-one thousand, two hundred fifteen".