11712858 has 16 divisors (see below), whose sum is σ = 23478336. Its totient is φ = 3895520.

The previous prime is 11712853. The next prime is 11712859. The reversal of 11712858 is 85821711.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (11712853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1078 + ... + 4958.

It is an arithmetic number, because the mean of its divisors is an integer number (1467396).

Almost surely, 2^11712858 is an apocalyptic number.

11712858 is an abundant number, since it is smaller than the sum of its proper divisors (11765478).

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

11712858 is a wasteful number, since it uses less digits than its factorization.

11712858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4389.

The product of its digits is 4480, while the sum is 33.

The square root of 11712858 is about 3422.4052945261. The cubic root of 11712858 is about 227.1020002573.

The spelling of 11712858 in words is "eleven million, seven hundred twelve thousand, eight hundred fifty-eight".