11978066 has 8 divisors (see below), whose sum is σ = 17990220. Its totient is φ = 5981328.

The previous prime is 11978063. The next prime is 11978069. The reversal of 11978066 is 66087911.

11978066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11978063) and next prime (11978069).

It can be written as a sum of positive squares in 2 ways, for example, as 11458225 + 519841 = 3385^2 + 721^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a pancake number, because a pancake can be divided into 11978066 parts by 4894 straight cuts.

It is not an unprimeable number, because it can be changed into a prime (11978063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1661 + ... + 5168.

Almost surely, 2^11978066 is an apocalyptic number.

11978066 is a deficient number, since it is larger than the sum of its proper divisors (6012154).

11978066 is an equidigital number, since it uses as much as digits as its factorization.

11978066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7708.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 11978066 is about 3460.9342669285. The cubic root of 11978066 is about 228.8032736463.

The spelling of 11978066 in words is "eleven million, nine hundred seventy-eight thousand, sixty-six".