41099621 has 2 divisors, whose sum is σ = 41099622. Its totient is φ = 41099620.

The previous prime is 41099599. The next prime is 41099623. The reversal of 41099621 is 12699014.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37039396 + 4060225 = 6086^2 + 2015^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-41099621 is a prime.

Together with 41099623, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41099623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20549810 + 20549811.

It is an arithmetic number, because the mean of its divisors is an integer number (20549811).

Almost surely, 2^41099621 is an apocalyptic number.

It is an amenable number.

41099621 is a deficient number, since it is larger than the sum of its proper divisors (1).

41099621 is an equidigital number, since it uses as much as digits as its factorization.

41099621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 41099621 is about 6410.8986109593. The cubic root of 41099621 is about 345.1007785121.

The spelling of 41099621 in words is "forty-one million, ninety-nine thousand, six hundred twenty-one".