8249390215 has 16 divisors (see below), whose sum is σ = 10871690400. Its totient is φ = 5959285120.

The previous prime is 8249390213. The next prime is 8249390239. The reversal of 8249390215 is 5120939428.

It is not a de Polignac number, because 8249390215 - 2¹ = 8249390213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8249390213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 495124 + ... + 511513.

It is an arithmetic number, because the mean of its divisors is an integer number (679480650).

Almost surely, 2^8249390215 is an apocalyptic number.

8249390215 is a deficient number, since it is larger than the sum of its proper divisors (2622300185).

8249390215 is a wasteful number, since it uses less digits than its factorization.

8249390215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006802.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 8249390215 is about 90826.1538049476. The cubic root of 8249390215 is about 2020.5702254977.

The spelling of 8249390215 in words is "eight billion, two hundred forty-nine million, three hundred ninety thousand, two hundred fifteen".