8340857 has 4 divisors (see below), whose sum is σ = 9532416. Its totient is φ = 7149300.

The previous prime is 8340853. The next prime is 8340877. The reversal of 8340857 is 7580438.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8340857 - 2² = 8340853 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8340851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 595769 + ... + 595782.

It is an arithmetic number, because the mean of its divisors is an integer number (2383104).

Almost surely, 2^8340857 is an apocalyptic number.

It is an amenable number.

8340857 is a deficient number, since it is larger than the sum of its proper divisors (1191559).

8340857 is a wasteful number, since it uses less digits than its factorization.

8340857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191558.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 8340857 is about 2888.0541892423. The cubic root of 8340857 is about 202.8010621136.

The spelling of 8340857 in words is "eight million, three hundred forty thousand, eight hundred fifty-seven".