11996578 has 16 divisors (see below), whose sum is σ = 19828800. Its totient is φ = 5398000.

The previous prime is 11996573. The next prime is 11996591. The reversal of 11996578 is 87569911.

It is a happy number.

11996578 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (11996573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 478 + ... + 4921.

It is an arithmetic number, because the mean of its divisors is an integer number (1239300).

Almost surely, 2^11996578 is an apocalyptic number.

11996578 is a deficient number, since it is larger than the sum of its proper divisors (7832222).

11996578 is a wasteful number, since it uses less digits than its factorization.

11996578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5513.

The product of its digits is 136080, while the sum is 46.

The square root of 11996578 is about 3463.6076567648. The cubic root of 11996578 is about 228.9210841521.

It can be divided in two parts, 1199 and 6578, that added together give a palindrome (7777).

The spelling of 11996578 in words is "eleven million, nine hundred ninety-six thousand, five hundred seventy-eight".