11721084 has 24 divisors (see below), whose sum is σ = 27568128. Its totient is φ = 3875760.

The previous prime is 11721079. The next prime is 11721107. The reversal of 11721084 is 48012711.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2322 + ... + 5369.

It is an arithmetic number, because the mean of its divisors is an integer number (1148672).

Almost surely, 2^11721084 is an apocalyptic number.

It is an amenable number.

11721084 is an abundant number, since it is smaller than the sum of its proper divisors (15847044).

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

11721084 is a wasteful number, since it uses less digits than its factorization.

11721084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7825 (or 7823 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 24.

The square root of 11721084 is about 3423.6068699546. The cubic root of 11721084 is about 227.1551527811.

Adding to 11721084 its reverse (48012711), we get a palindrome (59733795).

The spelling of 11721084 in words is "eleven million, seven hundred twenty-one thousand, eighty-four".