5621436 has 18 divisors (see below), whose sum is σ = 14209832. Its totient is φ = 1873800.

The previous prime is 5621423. The next prime is 5621437. The reversal of 5621436 is 6341265.

5621436 is a `hidden beast` number, since 5 + 621 + 4 + 36 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5621437) 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 5 ways as a sum of consecutive naturals, for example, 78040 + ... + 78111.

Almost surely, 2^5621436 is an apocalyptic number.

It is an amenable number.

5621436 is an abundant number, since it is smaller than the sum of its proper divisors (8588396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5621436 is a wasteful number, since it uses less digits than its factorization.

5621436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156161 (or 156156 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 5621436 is about 2370.9567689015. The cubic root of 5621436 is about 177.8070964956.

The spelling of 5621436 in words is "five million, six hundred twenty-one thousand, four hundred thirty-six".