5621634 has 12 divisors (see below), whose sum is σ = 12180246. Its totient is φ = 1873872.

The previous prime is 5621617. The next prime is 5621653. The reversal of 5621634 is 4361265.

5621634 is a `hidden beast` number, since 5 + 6 + 21 + 634 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4422609 + 1199025 = 2103^2 + 1095^2 .

It is a junction number, because it is equal to n+sod(n) for n = 5621598 and 5621607.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 156139 + ... + 156174.

Almost surely, 2^5621634 is an apocalyptic number.

5621634 is an abundant number, since it is smaller than the sum of its proper divisors (6558612).

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

5621634 is a wasteful number, since it uses less digits than its factorization.

5621634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312321 (or 312318 counting only the distinct ones).

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

The square root of 5621634 is about 2370.9985238291. The cubic root of 5621634 is about 177.8091840637.

Adding to 5621634 its reverse (4361265), we get a palindrome (9982899).

The spelling of 5621634 in words is "five million, six hundred twenty-one thousand, six hundred thirty-four".