11731698 has 48 divisors (see below), whose sum is σ = 27963936. Its totient is φ = 3525120.

The previous prime is 11731693. The next prime is 11731711. The reversal of 11731698 is 89613711.

It is a super-3 number, since 3×11731698³ (a number of 22 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11731691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38061 + ... + 38367.

It is an arithmetic number, because the mean of its divisors is an integer number (582582).

Almost surely, 2^11731698 is an apocalyptic number.

11731698 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 11731698, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13981968).

11731698 is an abundant number, since it is smaller than the sum of its proper divisors (16232238).

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

11731698 is a wasteful number, since it uses less digits than its factorization.

11731698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519 (or 516 counting only the distinct ones).

The product of its digits is 9072, while the sum is 36.

The square root of 11731698 is about 3425.1566387539. The cubic root of 11731698 is about 227.2236986992.

The spelling of 11731698 in words is "eleven million, seven hundred thirty-one thousand, six hundred ninety-eight".