11998734 has 32 divisors (see below), whose sum is σ = 26390016. Its totient is φ = 3606720.

The previous prime is 11998733. The next prime is 11998739. The reversal of 11998734 is 43789911.

It is a happy number.

11998734 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11998733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8379 + ... + 9705.

It is an arithmetic number, because the mean of its divisors is an integer number (824688).

Almost surely, 2^11998734 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11998734, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13195008).

11998734 is an abundant number, since it is smaller than the sum of its proper divisors (14391282).

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

11998734 is a wasteful number, since it uses less digits than its factorization.

11998734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1480.

The product of its digits is 54432, while the sum is 42.

The square root of 11998734 is about 3463.9188789578. The cubic root of 11998734 is about 228.9347970707.

It can be divided in two parts, 119987 and 34, that added together give a palindrome (120021).

The spelling of 11998734 in words is "eleven million, nine hundred ninety-eight thousand, seven hundred thirty-four".