11646397 has 4 divisors (see below), whose sum is σ = 13310176. Its totient is φ = 9982620.

The previous prime is 11646391. The next prime is 11646403. The reversal of 11646397 is 79364611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (11646391) and next prime (11646403).

It is a cyclic number.

It is not a de Polignac number, because 11646397 - 2³ = 11646389 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 (11646391) 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, 831879 + ... + 831892.

It is an arithmetic number, because the mean of its divisors is an integer number (3327544).

Almost surely, 2^11646397 is an apocalyptic number.

It is an amenable number.

11646397 is a deficient number, since it is larger than the sum of its proper divisors (1663779).

11646397 is an equidigital number, since it uses as much as digits as its factorization.

11646397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1663778.

The product of its digits is 27216, while the sum is 37.

The square root of 11646397 is about 3412.6817900297. The cubic root of 11646397 is about 226.6716451713.

The spelling of 11646397 in words is "eleven million, six hundred forty-six thousand, three hundred ninety-seven".