35621 has 4 divisors (see below), whose sum is σ = 36000. Its totient is φ = 35244.

The previous prime is 35617. The next prime is 35671. The reversal of 35621 is 12653.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 35621 - 2² = 35617 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 35621.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 35621.

It is not an unprimeable number, because it can be changed into a prime (35671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80 + ... + 278.

It is an arithmetic number, because the mean of its divisors is an integer number (9000).

2³⁵⁶²¹ is an apocalyptic number.

It is an amenable number.

35621 is a deficient number, since it is larger than the sum of its proper divisors (379).

35621 is a wasteful number, since it uses less digits than its factorization.

35621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378.

The product of its digits is 180, while the sum is 17.

The square root of 35621 is about 188.7352643255. The cubic root of 35621 is about 32.9029902771.

It can be divided in two parts, 35 and 621, that added together give a palindrome (656).

The spelling of 35621 in words is "thirty-five thousand, six hundred twenty-one".