11822979 has 16 divisors (see below), whose sum is σ = 18436352. Its totient is φ = 6598368.

The previous prime is 11822977. The next prime is 11823011. The reversal of 11822979 is 97922811.

11822979 = T₂₇ + T₂₈ + ... + T₄₁₃.

11822979 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11822979 - 2¹ = 11822977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11822977) 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, 5644 + ... + 7449.

It is an arithmetic number, because the mean of its divisors is an integer number (1152272).

Almost surely, 2^11822979 is an apocalyptic number.

11822979 is a deficient number, since it is larger than the sum of its proper divisors (6613373).

11822979 is a wasteful number, since it uses less digits than its factorization.

11822979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13146.

The product of its digits is 18144, while the sum is 39.

The square root of 11822979 is about 3438.4559034543. The cubic root of 11822979 is about 227.8114977818.

The spelling of 11822979 in words is "eleven million, eight hundred twenty-two thousand, nine hundred seventy-nine".