11661774 has 8 divisors (see below), whose sum is σ = 23323560. Its totient is φ = 3887256.

The previous prime is 11661773. The next prime is 11661827. The reversal of 11661774 is 47716611.

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

11661774 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11661773) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 971809 + ... + 971820.

It is an arithmetic number, because the mean of its divisors is an integer number (2915445).

Almost surely, 2^11661774 is an apocalyptic number.

11661774 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11661774 is a wasteful number, since it uses less digits than its factorization.

11661774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1943634.

The product of its digits is 7056, while the sum is 33.

The square root of 11661774 is about 3414.9339671508. The cubic root of 11661774 is about 226.7713611895.

The spelling of 11661774 in words is "eleven million, six hundred sixty-one thousand, seven hundred seventy-four".