43970489 has 2 divisors, whose sum is σ = 43970490. Its totient is φ = 43970488.

The previous prime is 43970461. The next prime is 43970497. The reversal of 43970489 is 98407934.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39476089 + 4494400 = 6283^2 + 2120^2 .

It is a cyclic number.

It is not a de Polignac number, because 43970489 - 2⁸ = 43970233 is a prime.

It is not a weakly prime, because it can be changed into another prime (43970419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21985244 + 21985245.

It is an arithmetic number, because the mean of its divisors is an integer number (21985245).

Almost surely, 2^43970489 is an apocalyptic number.

It is an amenable number.

43970489 is a deficient number, since it is larger than the sum of its proper divisors (1).

43970489 is an equidigital number, since it uses as much as digits as its factorization.

43970489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 43970489 is about 6631.0247322718. The cubic root of 43970489 is about 352.9558885245.

The spelling of 43970489 in words is "forty-three million, nine hundred seventy thousand, four hundred eighty-nine".