11961279 has 24 divisors (see below), whose sum is σ = 19843200. Its totient is φ = 6866640.

The previous prime is 11961263. The next prime is 11961283. The reversal of 11961279 is 97216911.

It is not a de Polignac number, because 11961279 - 2⁴ = 11961263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11961259) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1299 + ... + 5060.

It is an arithmetic number, because the mean of its divisors is an integer number (826800).

Almost surely, 2^11961279 is an apocalyptic number.

11961279 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

11961279 is a deficient number, since it is larger than the sum of its proper divisors (7881921).

11961279 is a wasteful number, since it uses less digits than its factorization.

11961279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6395 (or 6392 counting only the distinct ones).

The product of its digits is 6804, while the sum is 36.

The square root of 11961279 is about 3458.5082044142. The cubic root of 11961279 is about 228.6963360634.

The spelling of 11961279 in words is "eleven million, nine hundred sixty-one thousand, two hundred seventy-nine".