11507994 has 36 divisors (see below), whose sum is σ = 25921194. Its totient is φ = 3831624.

The previous prime is 11507989. The next prime is 11508017. The reversal of 11507994 is 49970511.

It can be written as a sum of positive squares in only one way, i.e., 8037225 + 3470769 = 2835^2 + 1863^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 12684 + ... + 13560.

Almost surely, 2^11507994 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11507994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12960597).

11507994 is an abundant number, since it is smaller than the sum of its proper divisors (14413200).

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

11507994 is an frugal number, since it uses more digits than its factorization.

11507994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903 (or 882 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The square root of 11507994 is about 3392.3434378023. The cubic root of 11507994 is about 225.7701607805.

The spelling of 11507994 in words is "eleven million, five hundred seven thousand, nine hundred ninety-four".