5621895 has 24 divisors (see below), whose sum is σ = 9801792. Its totient is φ = 2980800.

The previous prime is 5621873. The next prime is 5621899. The reversal of 5621895 is 5981265.

It is a happy number.

5621895 is a `hidden beast` number, since 562 + 1 + 8 + 95 = 666.

It is not a de Polignac number, because 5621895 - 2⁷ = 5621767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5621899) 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 23 ways as a sum of consecutive naturals, for example, 11965 + ... + 12425.

It is an arithmetic number, because the mean of its divisors is an integer number (408408).

Almost surely, 2^5621895 is an apocalyptic number.

5621895 is a deficient number, since it is larger than the sum of its proper divisors (4179897).

5621895 is a wasteful number, since it uses less digits than its factorization.

5621895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743 (or 740 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The square root of 5621895 is about 2371.0535632921. The cubic root of 5621895 is about 177.8119357831.

The spelling of 5621895 in words is "five million, six hundred twenty-one thousand, eight hundred ninety-five".