43648697 has 2 divisors, whose sum is σ = 43648698. Its totient is φ = 43648696.

The previous prime is 43648609. The next prime is 43648711. The reversal of 43648697 is 79684634.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28987456 + 14661241 = 5384^2 + 3829^2 .

It is a cyclic number.

It is not a de Polignac number, because 43648697 - 2⁸ = 43648441 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (43648607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21824348 + 21824349.

It is an arithmetic number, because the mean of its divisors is an integer number (21824349).

Almost surely, 2^43648697 is an apocalyptic number.

It is an amenable number.

43648697 is a deficient number, since it is larger than the sum of its proper divisors (1).

43648697 is an equidigital number, since it uses as much as digits as its factorization.

43648697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 47.

The square root of 43648697 is about 6606.7160526240. The cubic root of 43648697 is about 352.0927597521.

The spelling of 43648697 in words is "forty-three million, six hundred forty-eight thousand, six hundred ninety-seven".