11907842 has 4 divisors (see below), whose sum is σ = 17861766. Its totient is φ = 5953920.

The previous prime is 11907829. The next prime is 11907869. The reversal of 11907842 is 24870911.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24870911 = 13 ⋅1913147.

It can be written as a sum of positive squares in only one way, i.e., 9247681 + 2660161 = 3041^2 + 1631^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11907799 and 11907808.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2976959 + ... + 2976962.

Almost surely, 2^11907842 is an apocalyptic number.

11907842 is a deficient number, since it is larger than the sum of its proper divisors (5953924).

11907842 is an equidigital number, since it uses as much as digits as its factorization.

11907842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5953923.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 11907842 is about 3450.7741160499. The cubic root of 11907842 is about 228.3552607685.

The spelling of 11907842 in words is "eleven million, nine hundred seven thousand, eight hundred forty-two".