41831621 has 4 divisors (see below), whose sum is σ = 45049452. Its totient is φ = 38613792.

The previous prime is 41831609. The next prime is 41831623. The reversal of 41831621 is 12613814.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2280100 + 39551521 = 1510^2 + 6289^2 .

It is a cyclic number.

It is not a de Polignac number, because 41831621 - 2¹⁰ = 41830597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41831623) 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, 1608896 + ... + 1608921.

It is an arithmetic number, because the mean of its divisors is an integer number (11262363).

Almost surely, 2^41831621 is an apocalyptic number.

It is an amenable number.

41831621 is a deficient number, since it is larger than the sum of its proper divisors (3217831).

41831621 is a wasteful number, since it uses less digits than its factorization.

41831621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3217830.

The product of its digits is 1152, while the sum is 26.

The square root of 41831621 is about 6467.7369303335. The cubic root of 41831621 is about 347.1375265647.

The spelling of 41831621 in words is "forty-one million, eight hundred thirty-one thousand, six hundred twenty-one".