40837913 has 2 divisors, whose sum is σ = 40837914. Its totient is φ = 40837912.

The previous prime is 40837871. The next prime is 40837933. The reversal of 40837913 is 31973804.

40837913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40615129 + 222784 = 6373^2 + 472^2 .

It is a cyclic number.

It is not a de Polignac number, because 40837913 - 2¹² = 40833817 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40837933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20418956 + 20418957.

It is an arithmetic number, because the mean of its divisors is an integer number (20418957).

Almost surely, 2^40837913 is an apocalyptic number.

It is an amenable number.

40837913 is a deficient number, since it is larger than the sum of its proper divisors (1).

40837913 is an equidigital number, since it uses as much as digits as its factorization.

40837913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 40837913 is about 6390.4548351428. The cubic root of 40837913 is about 344.3667245814.

The spelling of 40837913 in words is "forty million, eight hundred thirty-seven thousand, nine hundred thirteen".