11747438 has 4 divisors (see below), whose sum is σ = 17621160. Its totient is φ = 5873718.

The previous prime is 11747429. The next prime is 11747473. The reversal of 11747438 is 83474711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83474711 = 1783 ⋅46817.

It is a junction number, because it is equal to n+sod(n) for n = 11747398 and 11747407.

It is a congruent number.

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, 2936858 + ... + 2936861.

It is an arithmetic number, because the mean of its divisors is an integer number (4405290).

Almost surely, 2^11747438 is an apocalyptic number.

11747438 is a deficient number, since it is larger than the sum of its proper divisors (5873722).

11747438 is an equidigital number, since it uses as much as digits as its factorization.

11747438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5873721.

The product of its digits is 18816, while the sum is 35.

The square root of 11747438 is about 3427.4535737191. The cubic root of 11747438 is about 227.3252725924.

The spelling of 11747438 in words is "eleven million, seven hundred forty-seven thousand, four hundred thirty-eight".