11761986 has 8 divisors (see below), whose sum is σ = 23523984. Its totient is φ = 3920660.

The previous prime is 11761961. The next prime is 11761987. The reversal of 11761986 is 68916711.

11761986 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 sphenic number, since it is the product of 3 distinct primes.

11761986 is an admirable number.

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 3 ways as a sum of consecutive naturals, for example, 980160 + ... + 980171.

It is an arithmetic number, because the mean of its divisors is an integer number (2940498).

Almost surely, 2^11761986 is an apocalyptic number.

11761986 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11761986 is a wasteful number, since it uses less digits than its factorization.

11761986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1960336.

The product of its digits is 18144, while the sum is 39.

The square root of 11761986 is about 3429.5751923525. The cubic root of 11761986 is about 227.4190735791.

The spelling of 11761986 in words is "eleven million, seven hundred sixty-one thousand, nine hundred eighty-six".