2859397 has 8 divisors (see below), whose sum is σ = 2967800. Its totient is φ = 2752704.

The previous prime is 2859391. The next prime is 2859407. The reversal of 2859397 is 7939582.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 695556 + 2163841 = 834^2 + 1471^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2859397 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 (2859391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3679 + ... + 4387.

It is an arithmetic number, because the mean of its divisors is an integer number (370975).

2^2859397 is an apocalyptic number.

It is an amenable number.

2859397 is a deficient number, since it is larger than the sum of its proper divisors (108403).

2859397 is a wasteful number, since it uses less digits than its factorization.

2859397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855.

The product of its digits is 136080, while the sum is 43.

The square root of 2859397 is about 1690.9751624433. The cubic root of 2859397 is about 141.9356482864.

The spelling of 2859397 in words is "two million, eight hundred fifty-nine thousand, three hundred ninety-seven".