11691007 has 4 divisors (see below), whose sum is σ = 11724480. Its totient is φ = 11657536.

The previous prime is 11690989. The next prime is 11691011. The reversal of 11691007 is 70019611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70019611 = 389 ⋅179999.

It is a cyclic number.

It is not a de Polignac number, because 11691007 - 2⁷ = 11690879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11691037) 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, 16207 + ... + 16912.

It is an arithmetic number, because the mean of its divisors is an integer number (2931120).

Almost surely, 2^11691007 is an apocalyptic number.

11691007 is a deficient number, since it is larger than the sum of its proper divisors (33473).

11691007 is an equidigital number, since it uses as much as digits as its factorization.

11691007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33472.

The product of its (nonzero) digits is 378, while the sum is 25.

The square root of 11691007 is about 3419.2114588016. The cubic root of 11691007 is about 226.9606884644.

The spelling of 11691007 in words is "eleven million, six hundred ninety-one thousand, seven".