43875413 has 2 divisors, whose sum is σ = 43875414. Its totient is φ = 43875412.

The previous prime is 43875383. The next prime is 43875431. The reversal of 43875413 is 31457834.

Together with next prime (43875431) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42745444 + 1129969 = 6538^2 + 1063^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43875413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43875493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21937706 + 21937707.

It is an arithmetic number, because the mean of its divisors is an integer number (21937707).

Almost surely, 2^43875413 is an apocalyptic number.

It is an amenable number.

43875413 is a deficient number, since it is larger than the sum of its proper divisors (1).

43875413 is an equidigital number, since it uses as much as digits as its factorization.

43875413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 35.

The square root of 43875413 is about 6623.8518250335. The cubic root of 43875413 is about 352.7013098227.

The spelling of 43875413 in words is "forty-three million, eight hundred seventy-five thousand, four hundred thirteen".