2858397 has 16 divisors (see below), whose sum is σ = 4136832. Its totient is φ = 1748480.

The previous prime is 2858393. The next prime is 2858423. The reversal of 2858397 is 7938582.

It is a cyclic number.

It is not a de Polignac number, because 2858397 - 2² = 2858393 is a prime.

2858397 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2858393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1408 + ... + 2774.

It is an arithmetic number, because the mean of its divisors is an integer number (258552).

2^2858397 is an apocalyptic number.

It is an amenable number.

2858397 is a deficient number, since it is larger than the sum of its proper divisors (1278435).

2858397 is a wasteful number, since it uses less digits than its factorization.

2858397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1428.

The product of its digits is 120960, while the sum is 42.

The square root of 2858397 is about 1690.6794492156. The cubic root of 2858397 is about 141.9191002522.

It can be divided in two parts, 28583 and 97, that added together give a triangular number (28680 = T₂₃₉).

The spelling of 2858397 in words is "two million, eight hundred fifty-eight thousand, three hundred ninety-seven".