11456621 has 4 divisors (see below), whose sum is σ = 12498144. Its totient is φ = 10415100.

The previous prime is 11456611. The next prime is 11456647. The reversal of 11456621 is 12665411.

11456621 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12665411 = 11 ⋅1151401.

It is a cyclic number.

It is not a de Polignac number, because 11456621 - 2¹⁰ = 11455597 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 (11456611) 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 3 ways as a sum of consecutive naturals, for example, 520745 + ... + 520766.

It is an arithmetic number, because the mean of its divisors is an integer number (3124536).

Almost surely, 2^11456621 is an apocalyptic number.

11456621 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11456621 is a deficient number, since it is larger than the sum of its proper divisors (1041523).

11456621 is a wasteful number, since it uses less digits than its factorization.

11456621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041522.

The product of its digits is 1440, while the sum is 26.

The square root of 11456621 is about 3384.7630640859. The cubic root of 11456621 is about 225.4337050264.

The spelling of 11456621 in words is "eleven million, four hundred fifty-six thousand, six hundred twenty-one".