11537994 has 32 divisors (see below), whose sum is σ = 25329024. Its totient is φ = 3481920.

The previous prime is 11537993. The next prime is 11538013. The reversal of 11537994 is 49973511.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (11537993) 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, 2739 + ... + 5529.

It is an arithmetic number, because the mean of its divisors is an integer number (791532).

Almost surely, 2^11537994 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11537994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12664512).

11537994 is an abundant number, since it is smaller than the sum of its proper divisors (13791030).

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

11537994 is a wasteful number, since it uses less digits than its factorization.

11537994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2862.

The product of its digits is 34020, while the sum is 39.

The square root of 11537994 is about 3396.7622819385. The cubic root of 11537994 is about 225.9661760538.

The spelling of 11537994 in words is "eleven million, five hundred thirty-seven thousand, nine hundred ninety-four".