11697071 has 4 divisors (see below), whose sum is σ = 12385152. Its totient is φ = 11008992.

The previous prime is 11697067. The next prime is 11697073. The reversal of 11697071 is 17079611.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11697071 - 2² = 11697067 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 (11697073) 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, 344015 + ... + 344048.

It is an arithmetic number, because the mean of its divisors is an integer number (3096288).

Almost surely, 2^11697071 is an apocalyptic number.

11697071 is a deficient number, since it is larger than the sum of its proper divisors (688081).

11697071 is an equidigital number, since it uses as much as digits as its factorization.

11697071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688080.

The product of its (nonzero) digits is 2646, while the sum is 32.

The square root of 11697071 is about 3420.0980980083. The cubic root of 11697071 is about 226.9999223738. Note that the first 4 decimals are identical.

The spelling of 11697071 in words is "eleven million, six hundred ninety-seven thousand, seventy-one".