11657061 has 16 divisors (see below), whose sum is σ = 18598720. Its totient is φ = 7173360.

The previous prime is 11657047. The next prime is 11657083. The reversal of 11657061 is 16075611.

11657061 is a `hidden beast` number, since 1 + 1 + 657 + 0 + 6 + 1 = 666.

It is not a de Polignac number, because 11657061 - 2⁵ = 11657029 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11657011) 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, 16255 + ... + 16956.

It is an arithmetic number, because the mean of its divisors is an integer number (1162420).

Almost surely, 2^11657061 is an apocalyptic number.

It is an amenable number.

11657061 is a deficient number, since it is larger than the sum of its proper divisors (6941659).

11657061 is a wasteful number, since it uses less digits than its factorization.

11657061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33233 (or 33227 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 11657061 is about 3414.2438401497. The cubic root of 11657061 is about 226.7408078781.

The spelling of 11657061 in words is "eleven million, six hundred fifty-seven thousand, sixty-one".