11993616 has 40 divisors (see below), whose sum is σ = 34427360. Its totient is φ = 3997728.

The previous prime is 11993593. The next prime is 11993659. The reversal of 11993616 is 61639911.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13450 + ... + 14313.

It is an arithmetic number, because the mean of its divisors is an integer number (860684).

Almost surely, 2^11993616 is an apocalyptic number.

11993616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11993616 is an abundant number, since it is smaller than the sum of its proper divisors (22433744).

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

11993616 is a wasteful number, since it uses less digits than its factorization.

11993616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27780 (or 27768 counting only the distinct ones).

The product of its digits is 8748, while the sum is 36.

The square root of 11993616 is about 3463.1800415225. The cubic root of 11993616 is about 228.9022421105.

The spelling of 11993616 in words is "eleven million, nine hundred ninety-three thousand, six hundred sixteen".