2397858 has 8 divisors (see below), whose sum is σ = 4795728. Its totient is φ = 799284.

The previous prime is 2397853. The next prime is 2397869. The reversal of 2397858 is 8587932.

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

2397858 is an admirable number.

It is a d-powerful number, because it can be written as 2¹¹ + 3¹¹ + 9³ + 7⁶ + 8 + 5⁵ + 8⁷ .

It is not an unprimeable number, because it can be changed into a prime (2397851) 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, 199816 + ... + 199827.

It is an arithmetic number, because the mean of its divisors is an integer number (599466).

2^2397858 is an apocalyptic number.

2397858 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2397858 is a wasteful number, since it uses less digits than its factorization.

2397858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399648.

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

The square root of 2397858 is about 1548.5018566343. The cubic root of 2397858 is about 133.8467469002.

The spelling of 2397858 in words is "two million, three hundred ninety-seven thousand, eight hundred fifty-eight".