11977105 has 8 divisors (see below), whose sum is σ = 16425792. Its totient is φ = 8212848.

The previous prime is 11977039. The next prime is 11977109. The reversal of 11977105 is 50177911.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11977105 - 2¹⁷ = 11846033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11977109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171067 + ... + 171136.

It is an arithmetic number, because the mean of its divisors is an integer number (2053224).

Almost surely, 2^11977105 is an apocalyptic number.

It is an amenable number.

11977105 is a deficient number, since it is larger than the sum of its proper divisors (4448687).

11977105 is an equidigital number, since it uses as much as digits as its factorization.

11977105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342215.

The product of its (nonzero) digits is 2205, while the sum is 31.

The square root of 11977105 is about 3460.7954287996. The cubic root of 11977105 is about 228.7971545219.

The spelling of 11977105 in words is "eleven million, nine hundred seventy-seven thousand, one hundred five".