2099858 has 8 divisors (see below), whose sum is σ = 3169152. Its totient is φ = 1043476.

The previous prime is 2099837. The next prime is 2099863. The reversal of 2099858 is 8589902.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2810 + ... + 3477.

It is an arithmetic number, because the mean of its divisors is an integer number (396144).

2^2099858 is an apocalyptic number.

2099858 is a deficient number, since it is larger than the sum of its proper divisors (1069294).

2099858 is a wasteful number, since it uses less digits than its factorization.

2099858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6456.

The product of its (nonzero) digits is 51840, while the sum is 41.

The square root of 2099858 is about 1449.0886791360. The cubic root of 2099858 is about 128.0550300489.

The spelling of 2099858 in words is "two million, ninety-nine thousand, eight hundred fifty-eight".