44536621 has 2 divisors, whose sum is σ = 44536622. Its totient is φ = 44536620.

The previous prime is 44536603. The next prime is 44536673. The reversal of 44536621 is 12663544.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37380996 + 7155625 = 6114^2 + 2675^2 .

It is a cyclic number.

It is not a de Polignac number, because 44536621 - 2¹¹ = 44534573 is a prime.

It is a super-2 number, since 2×44536621² = 3967021220195282, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44536321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22268310 + 22268311.

It is an arithmetic number, because the mean of its divisors is an integer number (22268311).

Almost surely, 2^44536621 is an apocalyptic number.

It is an amenable number.

44536621 is a deficient number, since it is larger than the sum of its proper divisors (1).

44536621 is an equidigital number, since it uses as much as digits as its factorization.

44536621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 31.

The square root of 44536621 is about 6673.5763275773. The cubic root of 44536621 is about 354.4642344804.

The spelling of 44536621 in words is "forty-four million, five hundred thirty-six thousand, six hundred twenty-one".