11732021 has 6 divisors (see below), whose sum is σ = 13647510. Its totient is φ = 10055976.

The previous prime is 11732003. The next prime is 11732033. The reversal of 11732021 is 12023711.

It can be written as a sum of positive squares in only one way, i.e., 7263025 + 4468996 = 2695^2 + 2114^2 .

It is not a de Polignac number, because 11732021 - 2¹⁰ = 11730997 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 (11732081) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 119666 + ... + 119763.

It is an arithmetic number, because the mean of its divisors is an integer number (2274585).

Almost surely, 2^11732021 is an apocalyptic number.

It is an amenable number.

11732021 is a deficient number, since it is larger than the sum of its proper divisors (1915489).

11732021 is an equidigital number, since it uses as much as digits as its factorization.

11732021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239443 (or 239436 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 11732021 is about 3425.2037895576. The cubic root of 11732021 is about 227.2257840063.

Adding to 11732021 its reverse (12023711), we get a palindrome (23755732).

The spelling of 11732021 in words is "eleven million, seven hundred thirty-two thousand, twenty-one".