8349815 has 4 divisors (see below), whose sum is σ = 10019784. Its totient is φ = 6679848.

The previous prime is 8349799. The next prime is 8349821. The reversal of 8349815 is 5189438.

8349815 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5189438 = 2 ⋅2594719.

It is a cyclic number.

It is not a de Polignac number, because 8349815 - 2⁴ = 8349799 is a prime.

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 3 ways as a sum of consecutive naturals, for example, 834977 + ... + 834986.

It is an arithmetic number, because the mean of its divisors is an integer number (2504946).

Almost surely, 2^8349815 is an apocalyptic number.

8349815 is a deficient number, since it is larger than the sum of its proper divisors (1669969).

8349815 is a wasteful number, since it uses less digits than its factorization.

8349815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1669968.

The product of its digits is 34560, while the sum is 38.

The square root of 8349815 is about 2889.6046442377. The cubic root of 8349815 is about 202.8736382662.

The spelling of 8349815 in words is "eight million, three hundred forty-nine thousand, eight hundred fifteen".