1206858 has 16 divisors (see below), whose sum is σ = 2448576. Its totient is φ = 396480.

The previous prime is 1206841. The next prime is 1206869. The reversal of 1206858 is 8586021.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 991 + ... + 1842.

It is an arithmetic number, because the mean of its divisors is an integer number (153036).

2^1206858 is an apocalyptic number.

1206858 is an abundant number, since it is smaller than the sum of its proper divisors (1241718).

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

1206858 is a wasteful number, since it uses less digits than its factorization.

1206858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2909.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 1206858 is about 1098.5708898382. The cubic root of 1206858 is about 106.4679089540.

The spelling of 1206858 in words is "one million, two hundred six thousand, eight hundred fifty-eight".