43975697 has 2 divisors, whose sum is σ = 43975698. Its totient is φ = 43975696.

The previous prime is 43975663. The next prime is 43975717. The reversal of 43975697 is 79657934.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28047616 + 15928081 = 5296^2 + 3991^2 .

It is a cyclic number.

It is not a de Polignac number, because 43975697 - 2¹⁶ = 43910161 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (43975297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21987848 + 21987849.

It is an arithmetic number, because the mean of its divisors is an integer number (21987849).

Almost surely, 2^43975697 is an apocalyptic number.

It is an amenable number.

43975697 is a deficient number, since it is larger than the sum of its proper divisors (1).

43975697 is an equidigital number, since it uses as much as digits as its factorization.

43975697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1428840, while the sum is 50.

The square root of 43975697 is about 6631.4174201297. The cubic root of 43975697 is about 352.9698230349.

The spelling of 43975697 in words is "forty-three million, nine hundred seventy-five thousand, six hundred ninety-seven".