11406621 has 4 divisors (see below), whose sum is σ = 15208832. Its totient is φ = 7604412.

The previous prime is 11406617. The next prime is 11406623. The reversal of 11406621 is 12660411.

11406621 is digitally balanced in base 2 and base 4, because in such bases 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: 12660411 = 3 ⋅4220137.

It is not a de Polignac number, because 11406621 - 2² = 11406617 is a prime.

It is a super-2 number, since 2×11406621² = 260222005275282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11406623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1901101 + ... + 1901106.

It is an arithmetic number, because the mean of its divisors is an integer number (3802208).

Almost surely, 2^11406621 is an apocalyptic number.

It is an amenable number.

11406621 is a deficient number, since it is larger than the sum of its proper divisors (3802211).

11406621 is an equidigital number, since it uses as much as digits as its factorization.

11406621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3802210.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 11406621 is about 3377.3689463842. The cubic root of 11406621 is about 225.1052741929.

The spelling of 11406621 in words is "eleven million, four hundred six thousand, six hundred twenty-one".