11662697 has 4 divisors (see below), whose sum is σ = 12348756. Its totient is φ = 10976640.

The previous prime is 11662687. The next prime is 11662711. The reversal of 11662697 is 79626611.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3345241 + 8317456 = 1829^2 + 2884^2 .

It is a cyclic number.

It is not a de Polignac number, because 11662697 - 2¹² = 11658601 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11662697.

It is not an unprimeable number, because it can be changed into a prime (11662657) 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, 343004 + ... + 343037.

It is an arithmetic number, because the mean of its divisors is an integer number (3087189).

Almost surely, 2^11662697 is an apocalyptic number.

11662697 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

11662697 is a deficient number, since it is larger than the sum of its proper divisors (686059).

11662697 is an equidigital number, since it uses as much as digits as its factorization.

11662697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686058.

The product of its digits is 27216, while the sum is 38.

The square root of 11662697 is about 3415.0691061822. The cubic root of 11662697 is about 226.7773438254. Note that the first 3 decimals are identical.

The spelling of 11662697 in words is "eleven million, six hundred sixty-two thousand, six hundred ninety-seven".