11931612 has 96 divisors (see below), whose sum is σ = 35750400. Its totient is φ = 3006720.

The previous prime is 11931553. The next prime is 11931613. The reversal of 11931612 is 21613911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11931613) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34014 + ... + 34362.

It is an arithmetic number, because the mean of its divisors is an integer number (372400).

Almost surely, 2^11931612 is an apocalyptic number.

11931612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11931612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17875200).

11931612 is an abundant number, since it is smaller than the sum of its proper divisors (23818788).

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

11931612 is a wasteful number, since it uses less digits than its factorization.

11931612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411 (or 409 counting only the distinct ones).

The product of its digits is 324, while the sum is 24.

The square root of 11931612 is about 3454.2165537210. The cubic root of 11931612 is about 228.5071045933.

The spelling of 11931612 in words is "eleven million, nine hundred thirty-one thousand, six hundred twelve".