11742789 has 4 divisors (see below), whose sum is σ = 15657056. Its totient is φ = 7828524.

The previous prime is 11742781. The next prime is 11742793. The reversal of 11742789 is 98724711.

11742789 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 11742789 - 2³ = 11742781 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 (11742781) 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, 1957129 + ... + 1957134.

It is an arithmetic number, because the mean of its divisors is an integer number (3914264).

Almost surely, 2^11742789 is an apocalyptic number.

It is an amenable number.

11742789 is a deficient number, since it is larger than the sum of its proper divisors (3914267).

11742789 is an equidigital number, since it uses as much as digits as its factorization.

11742789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3914266.

The product of its digits is 28224, while the sum is 39.

The square root of 11742789 is about 3426.7753063193. The cubic root of 11742789 is about 227.2952809569.

The spelling of 11742789 in words is "eleven million, seven hundred forty-two thousand, seven hundred eighty-nine".