849286397 has 4 divisors (see below), whose sum is σ = 857532000. Its totient is φ = 841040796.

The previous prime is 849286393. The next prime is 849286411. The reversal of 849286397 is 793682948.

It is a happy number.

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 849286397 - 2² = 849286393 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (849286393) 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, 4122647 + ... + 4122852.

It is an arithmetic number, because the mean of its divisors is an integer number (214383000).

Almost surely, 2^849286397 is an apocalyptic number.

It is an amenable number.

849286397 is a deficient number, since it is larger than the sum of its proper divisors (8245603).

849286397 is a wasteful number, since it uses less digits than its factorization.

849286397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8245602.

The product of its digits is 5225472, while the sum is 56.

The square root of 849286397 is about 29142.5187140714. The cubic root of 849286397 is about 947.0030753383.

The spelling of 849286397 in words is "eight hundred forty-nine million, two hundred eighty-six thousand, three hundred ninety-seven".