11861562 has 8 divisors (see below), whose sum is σ = 23723136. Its totient is φ = 3953852.

The previous prime is 11861539. The next prime is 11861569. The reversal of 11861562 is 26516811.

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

11861562 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (11861569) 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, 988458 + ... + 988469.

It is an arithmetic number, because the mean of its divisors is an integer number (2965392).

Almost surely, 2^11861562 is an apocalyptic number.

11861562 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.

11861562 is a wasteful number, since it uses less digits than its factorization.

11861562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1976932.

The product of its digits is 2880, while the sum is 30.

The square root of 11861562 is about 3444.0618461346. The cubic root of 11861562 is about 228.0590413425.

The spelling of 11861562 in words is "eleven million, eight hundred sixty-one thousand, five hundred sixty-two".