11616858 has 96 divisors (see below), whose sum is σ = 29719872. Its totient is φ = 3369600.

The previous prime is 11616851. The next prime is 11616859. The reversal of 11616858 is 85861611.

It is a super-3 number, since 3×11616858³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11616851) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 219160 + ... + 219212.

It is an arithmetic number, because the mean of its divisors is an integer number (309582).

Almost surely, 2^11616858 is an apocalyptic number.

11616858 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11616858, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14859936).

11616858 is an abundant number, since it is smaller than the sum of its proper divisors (18103014).

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

11616858 is a wasteful number, since it uses less digits than its factorization.

11616858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122 (or 110 counting only the distinct ones).

The product of its digits is 11520, while the sum is 36.

The square root of 11616858 is about 3408.3512142970. The cubic root of 11616858 is about 226.4798455818.

The spelling of 11616858 in words is "eleven million, six hundred sixteen thousand, eight hundred fifty-eight".