849697 has 4 divisors (see below), whose sum is σ = 853936. Its totient is φ = 845460.

The previous prime is 849691. The next prime is 849701. The reversal of 849697 is 796948.

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 849697 - 2¹⁵ = 816929 is a prime.

It is a Duffinian number.

849697 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (849691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1803 + ... + 2224.

It is an arithmetic number, because the mean of its divisors is an integer number (213484).

2⁸⁴⁹⁶⁹⁷ is an apocalyptic number.

It is an amenable number.

849697 is a deficient number, since it is larger than the sum of its proper divisors (4239).

849697 is a wasteful number, since it uses less digits than its factorization.

849697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4238.

The product of its digits is 108864, while the sum is 43.

The square root of 849697 is about 921.7901062606. The cubic root of 849697 is about 94.7155666054.

The spelling of 849697 in words is "eight hundred forty-nine thousand, six hundred ninety-seven".