12378079 has 8 divisors (see below), whose sum is σ = 14179328. Its totient is φ = 10585080.

The previous prime is 12378077. The next prime is 12378103. The reversal of 12378079 is 97087321.

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

It is a cyclic number.

It is not a de Polignac number, because 12378079 - 2¹ = 12378077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12378077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1594 + ... + 5224.

It is an arithmetic number, because the mean of its divisors is an integer number (1772416).

Almost surely, 2^12378079 is an apocalyptic number.

12378079 is a deficient number, since it is larger than the sum of its proper divisors (1801249).

12378079 is an equidigital number, since it uses as much as digits as its factorization.

12378079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4125.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 12378079 is about 3518.2494226533. The cubic root of 12378079 is about 231.3224322410.

It can be divided in two parts, 1237 and 8079, that added together give a triangular number (9316 = T₁₃₆).

The spelling of 12378079 in words is "twelve million, three hundred seventy-eight thousand, seventy-nine".