5621366 has 4 divisors (see below), whose sum is σ = 8432052.
Its totient is φ = 2810682.
The previous prime is 5621327. The next prime is 5621383. The reversal of 5621366 is 6631265.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6631265 = 5 ⋅1326253.
It is a congruent number.
It is an unprimeable number.
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 as a sum of consecutive naturals, namely, 1405340 + ... + 1405343.
It is an arithmetic number, because the mean of its divisors is an integer number (2108013).
Almost surely, 25621366 is an apocalyptic number.
5621366 is a deficient number, since it is larger than the sum of its proper divisors (2810686).
5621366 is a wasteful number, since it uses less digits than its factorization.
5621366 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2810685.
The product of its digits is 6480, while the sum is 29.
The square root of 5621366 is about 2370.9420068825.
The cubic root of 5621366 is about 177.8063584547.
The spelling of 5621366 in words is "five million, six hundred twenty-one thousand, three hundred sixty-six".