11785506 has 16 divisors (see below), whose sum is σ = 23665824. Its totient is φ = 3912704.

The previous prime is 11785493. The next prime is 11785507. The reversal of 11785506 is 60558711.

11785506 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 an unprimeable number, because it can be changed into a prime (11785507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2280 + ... + 5363.

It is an arithmetic number, because the mean of its divisors is an integer number (1479114).

Almost surely, 2^11785506 is an apocalyptic number.

11785506 is an abundant number, since it is smaller than the sum of its proper divisors (11880318).

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

11785506 is a wasteful number, since it uses less digits than its factorization.

11785506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7905.

The product of its (nonzero) digits is 8400, while the sum is 33.

The square root of 11785506 is about 3433.0024759676. The cubic root of 11785506 is about 227.5705597662.

The spelling of 11785506 in words is "eleven million, seven hundred eighty-five thousand, five hundred six".