5435621 has 2 divisors, whose sum is σ = 5435622. Its totient is φ = 5435620.

The previous prime is 5435609. The next prime is 5435629. The reversal of 5435621 is 1265345.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5013121 + 422500 = 2239^2 + 650^2 .

It is a cyclic number.

It is not a de Polignac number, because 5435621 - 2¹⁸ = 5173477 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5435629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2717810 + 2717811.

It is an arithmetic number, because the mean of its divisors is an integer number (2717811).

Almost surely, 2^5435621 is an apocalyptic number.

It is an amenable number.

5435621 is a deficient number, since it is larger than the sum of its proper divisors (1).

5435621 is an equidigital number, since it uses as much as digits as its factorization.

5435621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3600, while the sum is 26.

The square root of 5435621 is about 2331.4418285688. The cubic root of 5435621 is about 175.8259837353.

The spelling of 5435621 in words is "five million, four hundred thirty-five thousand, six hundred twenty-one".