12279698 has 4 divisors (see below), whose sum is σ = 18419550. Its totient is φ = 6139848.

The previous prime is 12279691. The next prime is 12279703. The reversal of 12279698 is 89697221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 89697221 = 1321 ⋅67901.

It can be written as a sum of positive squares in only one way, i.e., 11785489 + 494209 = 3433^2 + 703^2 .

It is not an unprimeable number, because it can be changed into a prime (12279691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3069923 + ... + 3069926.

Almost surely, 2^12279698 is an apocalyptic number.

12279698 is a deficient number, since it is larger than the sum of its proper divisors (6139852).

12279698 is an equidigital number, since it uses as much as digits as its factorization.

12279698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6139851.

The product of its digits is 108864, while the sum is 44.

The square root of 12279698 is about 3504.2400031961. The cubic root of 12279698 is about 230.7079509824.

The spelling of 12279698 in words is "twelve million, two hundred seventy-nine thousand, six hundred ninety-eight".