11862397 has 4 divisors (see below), whose sum is σ = 11880256. Its totient is φ = 11844540.

The previous prime is 11862391. The next prime is 11862439. The reversal of 11862397 is 79326811.

11862397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 79326811 = 17 ⋅4666283.

It is a cyclic number.

It is not a de Polignac number, because 11862397 - 2⁷ = 11862269 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 (11862391) 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, 7893 + ... + 9274.

It is an arithmetic number, because the mean of its divisors is an integer number (2970064).

Almost surely, 2^11862397 is an apocalyptic number.

11862397 is the 1989-th hex number.

It is an amenable number.

11862397 is a deficient number, since it is larger than the sum of its proper divisors (17859).

11862397 is an equidigital number, since it uses as much as digits as its factorization.

11862397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17858.

The product of its digits is 18144, while the sum is 37.

The square root of 11862397 is about 3444.1830671438. The cubic root of 11862397 is about 228.0643926566.

The spelling of 11862397 in words is "eleven million, eight hundred sixty-two thousand, three hundred ninety-seven".