11397839 has 8 divisors (see below), whose sum is σ = 11626368. Its totient is φ = 11171160.

The previous prime is 11397833. The next prime is 11397907. The reversal of 11397839 is 93879311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11397839 - 2⁴ = 11397823 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11397796 and 11397805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11397833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20564 + ... + 21110.

It is an arithmetic number, because the mean of its divisors is an integer number (1453296).

Almost surely, 2^11397839 is an apocalyptic number.

11397839 is a deficient number, since it is larger than the sum of its proper divisors (228529).

11397839 is an equidigital number, since it uses as much as digits as its factorization.

11397839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925.

The product of its digits is 40824, while the sum is 41.

The square root of 11397839 is about 3376.0685715785. The cubic root of 11397839 is about 225.0474895644.

The spelling of 11397839 in words is "eleven million, three hundred ninety-seven thousand, eight hundred thirty-nine".