11643907 has 8 divisors (see below), whose sum is σ = 12728880. Its totient is φ = 10563360.

The previous prime is 11643901. The next prime is 11643923. The reversal of 11643907 is 70934611.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 11643907 - 2¹¹ = 11641859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11643901) 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, 7053 + ... + 8545.

It is an arithmetic number, because the mean of its divisors is an integer number (1591110).

Almost surely, 2^11643907 is an apocalyptic number.

11643907 is a deficient number, since it is larger than the sum of its proper divisors (1084973).

11643907 is a wasteful number, since it uses less digits than its factorization.

11643907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2213.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 11643907 is about 3412.3169547977. The cubic root of 11643907 is about 226.6554898853.

The spelling of 11643907 in words is "eleven million, six hundred forty-three thousand, nine hundred seven".