12078746 has 4 divisors (see below), whose sum is σ = 18118122. Its totient is φ = 6039372.

The previous prime is 12078727. The next prime is 12078751. The reversal of 12078746 is 64787021.

It is a happy number.

12078746 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8637721 + 3441025 = 2939^2 + 1855^2 .

It is a super-2 number, since 2×12078746² = 291792209865032, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3019685 + ... + 3019688.

Almost surely, 2^12078746 is an apocalyptic number.

12078746 is a deficient number, since it is larger than the sum of its proper divisors (6039376).

12078746 is an equidigital number, since it uses as much as digits as its factorization.

12078746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6039375.

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 12078746 is about 3475.4490357362. The cubic root of 12078746 is about 229.4425441138.

The spelling of 12078746 in words is "twelve million, seventy-eight thousand, seven hundred forty-six".