11642975 has 24 divisors (see below), whose sum is σ = 15238608. Its totient is φ = 8812800.

The previous prime is 11642959. The next prime is 11643041. The reversal of 11642975 is 57924611.

It is not a de Polignac number, because 11642975 - 2⁴ = 11642959 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37772 + ... + 38078.

It is an arithmetic number, because the mean of its divisors is an integer number (634942).

Almost surely, 2^11642975 is an apocalyptic number.

11642975 is a deficient number, since it is larger than the sum of its proper divisors (3595633).

11642975 is a wasteful number, since it uses less digits than its factorization.

11642975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395 (or 390 counting only the distinct ones).

The product of its digits is 15120, while the sum is 35.

The square root of 11642975 is about 3412.1803879631. The cubic root of 11642975 is about 226.6494424147.

The spelling of 11642975 in words is "eleven million, six hundred forty-two thousand, nine hundred seventy-five".