41389921 has 2 divisors, whose sum is σ = 41389922. Its totient is φ = 41389920.

The previous prime is 41389877. The next prime is 41389927. The reversal of 41389921 is 12998314.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35533521 + 5856400 = 5961^2 + 2420^2 .

It is a cyclic number.

It is not a de Polignac number, because 41389921 - 2⁷ = 41389793 is a prime.

It is not a weakly prime, because it can be changed into another prime (41389927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20694960 + 20694961.

It is an arithmetic number, because the mean of its divisors is an integer number (20694961).

Almost surely, 2^41389921 is an apocalyptic number.

It is an amenable number.

41389921 is a deficient number, since it is larger than the sum of its proper divisors (1).

41389921 is an equidigital number, since it uses as much as digits as its factorization.

41389921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 37.

The square root of 41389921 is about 6433.4999028523. The cubic root of 41389921 is about 345.9113926601.

The spelling of 41389921 in words is "forty-one million, three hundred eighty-nine thousand, nine hundred twenty-one".