11908739 has 4 divisors (see below), whose sum is σ = 11946624. Its totient is φ = 11870856.

The previous prime is 11908727. The next prime is 11908747. The reversal of 11908739 is 93780911.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93780911 = 7 ⋅13397273.

It is a cyclic number.

It is not a de Polignac number, because 11908739 - 2⁴ = 11908723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11908439) 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, 18467 + ... + 19100.

It is an arithmetic number, because the mean of its divisors is an integer number (2986656).

Almost surely, 2^11908739 is an apocalyptic number.

11908739 is a deficient number, since it is larger than the sum of its proper divisors (37885).

11908739 is an equidigital number, since it uses as much as digits as its factorization.

11908739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37884.

The product of its (nonzero) digits is 13608, while the sum is 38.

The square root of 11908739 is about 3450.9040844393. The cubic root of 11908739 is about 228.3609945118.

The spelling of 11908739 in words is "eleven million, nine hundred eight thousand, seven hundred thirty-nine".