43279081 has 2 divisors, whose sum is σ = 43279082. Its totient is φ = 43279080.

The previous prime is 43279013. The next prime is 43279097. The reversal of 43279081 is 18097234.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24651225 + 18627856 = 4965^2 + 4316^2 .

It is a cyclic number.

It is not a de Polignac number, because 43279081 - 2⁷ = 43278953 is a prime.

It is a super-2 number, since 2×43279081² = 3746157704409122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (43279001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21639540 + 21639541.

It is an arithmetic number, because the mean of its divisors is an integer number (21639541).

Almost surely, 2^43279081 is an apocalyptic number.

It is an amenable number.

43279081 is a deficient number, since it is larger than the sum of its proper divisors (1).

43279081 is an equidigital number, since it uses as much as digits as its factorization.

43279081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 43279081 is about 6578.6838349323. The cubic root of 43279081 is about 351.0961038565.

The spelling of 43279081 in words is "forty-three million, two hundred seventy-nine thousand, eighty-one".