43983361 has 2 divisors, whose sum is σ = 43983362. Its totient is φ = 43983360.

The previous prime is 43983311. The next prime is 43983391. The reversal of 43983361 is 16338934.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41280625 + 2702736 = 6425^2 + 1644^2 .

It is a cyclic number.

It is not a de Polignac number, because 43983361 - 2²¹ = 41886209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43983361.

It is not a weakly prime, because it can be changed into another prime (43983311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21991680 + 21991681.

It is an arithmetic number, because the mean of its divisors is an integer number (21991681).

Almost surely, 2^43983361 is an apocalyptic number.

It is an amenable number.

43983361 is a deficient number, since it is larger than the sum of its proper divisors (1).

43983361 is an equidigital number, since it uses as much as digits as its factorization.

43983361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 37.

The square root of 43983361 is about 6631.9952502999. The cubic root of 43983361 is about 352.9903268114.

It can be divided in two parts, 43983 and 361, that added together give a palindrome (44344).

The spelling of 43983361 in words is "forty-three million, nine hundred eighty-three thousand, three hundred sixty-one".