41573621 has 4 divisors (see below), whose sum is σ = 42074592. Its totient is φ = 41072652.

The previous prime is 41573579. The next prime is 41573657. The reversal of 41573621 is 12637514.

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 an emirpimes, since its reverse is a distinct semiprime: 12637514 = 2 ⋅6318757.

It is a cyclic number.

It is not a de Polignac number, because 41573621 - 2⁶ = 41573557 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41573321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250361 + ... + 250526.

It is an arithmetic number, because the mean of its divisors is an integer number (10518648).

Almost surely, 2^41573621 is an apocalyptic number.

It is an amenable number.

41573621 is a deficient number, since it is larger than the sum of its proper divisors (500971).

41573621 is an equidigital number, since it uses as much as digits as its factorization.

41573621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500970.

The product of its digits is 5040, while the sum is 29.

The square root of 41573621 is about 6447.7609291908. The cubic root of 41573621 is about 346.4223877999.

The spelling of 41573621 in words is "forty-one million, five hundred seventy-three thousand, six hundred twenty-one".