11761988 has 24 divisors (see below), whose sum is σ = 24763200. Its totient is φ = 4775328.

The previous prime is 11761987. The next prime is 11761991. The reversal of 11761988 is 88916711.

11761988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (11761987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10523 + ... + 11586.

It is an arithmetic number, because the mean of its divisors is an integer number (1031800).

Almost surely, 2^11761988 is an apocalyptic number.

It is an amenable number.

11761988 is an abundant number, since it is smaller than the sum of its proper divisors (13001212).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11761988 is a wasteful number, since it uses less digits than its factorization.

11761988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22139 (or 22137 counting only the distinct ones).

The product of its digits is 24192, while the sum is 41.

The square root of 11761988 is about 3429.5754839338. The cubic root of 11761988 is about 227.4190864691.

The spelling of 11761988 in words is "eleven million, seven hundred sixty-one thousand, nine hundred eighty-eight".