11979285 has 16 divisors (see below), whose sum is σ = 19211904. Its totient is φ = 6373952.

The previous prime is 11979277. The next prime is 11979287. The reversal of 11979285 is 58297911.

11979285 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11979285 - 2³ = 11979277 is a prime.

It is a super-2 number, since 2×11979285² = 287006538222450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11979287) 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, 9184 + ... + 10406.

It is an arithmetic number, because the mean of its divisors is an integer number (1200744).

Almost surely, 2^11979285 is an apocalyptic number.

11979285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11979285 is a deficient number, since it is larger than the sum of its proper divisors (7232619).

11979285 is a wasteful number, since it uses less digits than its factorization.

11979285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1884.

The product of its digits is 45360, while the sum is 42.

The square root of 11979285 is about 3461.1103709648. The cubic root of 11979285 is about 228.8110351032.

The spelling of 11979285 in words is "eleven million, nine hundred seventy-nine thousand, two hundred eighty-five".