11779845 has 96 divisors (see below), whose sum is σ = 25214976. Its totient is φ = 4636800.

The previous prime is 11779843. The next prime is 11779853. The reversal of 11779845 is 54897711.

It is not a de Polignac number, because 11779845 - 2¹ = 11779843 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11779797 and 11779806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11779843) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 250612 + ... + 250658.

It is an arithmetic number, because the mean of its divisors is an integer number (262656).

Almost surely, 2^11779845 is an apocalyptic number.

11779845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11779845 is an abundant number, since it is smaller than the sum of its proper divisors (13435131).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11779845 is a wasteful number, since it uses less digits than its factorization.

11779845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 104 counting only the distinct ones).

The product of its digits is 70560, while the sum is 42.

The square root of 11779845 is about 3432.1778800056. The cubic root of 11779845 is about 227.5341171713.

The spelling of 11779845 in words is "eleven million, seven hundred seventy-nine thousand, eight hundred forty-five".