43683457 has 2 divisors, whose sum is σ = 43683458. Its totient is φ = 43683456.

The previous prime is 43683407. The next prime is 43683467. The reversal of 43683457 is 75438634.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38489616 + 5193841 = 6204^2 + 2279^2 .

It is a cyclic number.

It is not a de Polignac number, because 43683457 - 2⁷ = 43683329 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (43683407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21841728 + 21841729.

It is an arithmetic number, because the mean of its divisors is an integer number (21841729).

Almost surely, 2^43683457 is an apocalyptic number.

It is an amenable number.

43683457 is a deficient number, since it is larger than the sum of its proper divisors (1).

43683457 is an equidigital number, since it uses as much as digits as its factorization.

43683457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 40.

The square root of 43683457 is about 6609.3461855164. The cubic root of 43683457 is about 352.1861989443.

The spelling of 43683457 in words is "forty-three million, six hundred eighty-three thousand, four hundred fifty-seven".