11977343 has 4 divisors (see below), whose sum is σ = 13688400. Its totient is φ = 10266288.

The previous prime is 11977337. The next prime is 11977363. The reversal of 11977343 is 34377911.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34377911 = 1889 ⋅18199.

It is a cyclic number.

It is not a de Polignac number, because 11977343 - 2¹⁶ = 11911807 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 (11977363) 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, 855518 + ... + 855531.

It is an arithmetic number, because the mean of its divisors is an integer number (3422100).

Almost surely, 2^11977343 is an apocalyptic number.

11977343 is a deficient number, since it is larger than the sum of its proper divisors (1711057).

11977343 is an equidigital number, since it uses as much as digits as its factorization.

11977343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1711056.

The product of its digits is 15876, while the sum is 35.

The square root of 11977343 is about 3460.8298137874. The cubic root of 11977343 is about 228.7986700067.

The spelling of 11977343 in words is "eleven million, nine hundred seventy-seven thousand, three hundred forty-three".