11720582 has 16 divisors (see below), whose sum is σ = 19258560. Its totient is φ = 5324928.

The previous prime is 11720581. The next prime is 11720591. The reversal of 11720582 is 28502711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11720581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4958 + ... + 6929.

It is an arithmetic number, because the mean of its divisors is an integer number (1203660).

Almost surely, 2^11720582 is an apocalyptic number.

11720582 is a deficient number, since it is larger than the sum of its proper divisors (7537978).

11720582 is a wasteful number, since it uses less digits than its factorization.

11720582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11935.

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 11720582 is about 3423.5335546771. The cubic root of 11720582 is about 227.1519098070.

The spelling of 11720582 in words is "eleven million, seven hundred twenty thousand, five hundred eighty-two".