11673657 has 18 divisors (see below), whose sum is σ = 17801082. Its totient is φ = 7370784.

The previous prime is 11673653. The next prime is 11673661. The reversal of 11673657 is 75637611.

It is an interprime number because it is at equal distance from previous prime (11673653) and next prime (11673661).

It can be written as a sum of positive squares in only one way, i.e., 9126441 + 2547216 = 3021^2 + 1596^2 .

It is not a de Polignac number, because 11673657 - 2² = 11673653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11673653) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1453 + ... + 5045.

It is an arithmetic number, because the mean of its divisors is an integer number (988949).

Almost surely, 2^11673657 is an apocalyptic number.

It is an amenable number.

11673657 is a deficient number, since it is larger than the sum of its proper divisors (6127425).

11673657 is a wasteful number, since it uses less digits than its factorization.

11673657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3637 (or 3615 counting only the distinct ones).

The product of its digits is 26460, while the sum is 36.

The square root of 11673657 is about 3416.6733821072. The cubic root of 11673657 is about 226.8483594610.

The spelling of 11673657 in words is "eleven million, six hundred seventy-three thousand, six hundred fifty-seven".