12247279 has 16 divisors (see below), whose sum is σ = 13789440. Its totient is φ = 10783360.

The previous prime is 12247273. The next prime is 12247289. The reversal of 12247279 is 97274221.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12247279 - 2³ = 12247271 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 (12247271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73254 + ... + 73420.

It is an arithmetic number, because the mean of its divisors is an integer number (861840).

Almost surely, 2^12247279 is an apocalyptic number.

12247279 is a deficient number, since it is larger than the sum of its proper divisors (1542161).

12247279 is a wasteful number, since it uses less digits than its factorization.

12247279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350.

The product of its digits is 14112, while the sum is 34.

The square root of 12247279 is about 3499.6112641263. The cubic root of 12247279 is about 230.5047453157.

The spelling of 12247279 in words is "twelve million, two hundred forty-seven thousand, two hundred seventy-nine".