11626021 has 4 divisors (see below), whose sum is σ = 12682944. Its totient is φ = 10569100.

The previous prime is 11626019. The next prime is 11626073. The reversal of 11626021 is 12062611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11626021 - 2¹ = 11626019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11626021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11626091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 528445 + ... + 528466.

It is an arithmetic number, because the mean of its divisors is an integer number (3170736).

Almost surely, 2^11626021 is an apocalyptic number.

11626021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11626021 is a deficient number, since it is larger than the sum of its proper divisors (1056923).

11626021 is a wasteful number, since it uses less digits than its factorization.

11626021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056922.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 11626021 is about 3409.6951476635. The cubic root of 11626021 is about 226.5393765794.

Adding to 11626021 its reverse (12062611), we get a palindrome (23688632).

It can be divided in two parts, 116260 and 21, that added together give a square (116281 = 341²).

The spelling of 11626021 in words is "eleven million, six hundred twenty-six thousand, twenty-one".