8280215 has 4 divisors (see below), whose sum is σ = 9936264. Its totient is φ = 6624168.

The previous prime is 8280199. The next prime is 8280247. The reversal of 8280215 is 5120828.

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 8280215 - 2⁴ = 8280199 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 828017 + ... + 828026.

It is an arithmetic number, because the mean of its divisors is an integer number (2484066).

Almost surely, 2^8280215 is an apocalyptic number.

8280215 is a deficient number, since it is larger than the sum of its proper divisors (1656049).

8280215 is a wasteful number, since it uses less digits than its factorization.

8280215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1656048.

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 8280215 is about 2877.5362725776. The cubic root of 8280215 is about 202.3083794184.

The spelling of 8280215 in words is "eight million, two hundred eighty thousand, two hundred fifteen".