11869397 has 4 divisors (see below), whose sum is σ = 11888556. Its totient is φ = 11850240.

The previous prime is 11869393. The next prime is 11869399. The reversal of 11869397 is 79396811.

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 7349521 + 4519876 = 2711^2 + 2126^2 .

It is a cyclic number.

It is not a de Polignac number, because 11869397 - 2² = 11869393 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 (11869391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8618 + ... + 9899.

It is an arithmetic number, because the mean of its divisors is an integer number (2972139).

Almost surely, 2^11869397 is an apocalyptic number.

It is an amenable number.

11869397 is a deficient number, since it is larger than the sum of its proper divisors (19159).

11869397 is an equidigital number, since it uses as much as digits as its factorization.

11869397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19158.

The product of its digits is 81648, while the sum is 44.

The square root of 11869397 is about 3445.1991234180. The cubic root of 11869397 is about 228.1092440985.

The spelling of 11869397 in words is "eleven million, eight hundred sixty-nine thousand, three hundred ninety-seven".