43020697 has 2 divisors, whose sum is σ = 43020698. Its totient is φ = 43020696.

The previous prime is 43020671. The next prime is 43020709. The reversal of 43020697 is 79602034.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42719296 + 301401 = 6536^2 + 549^2 .

It is a cyclic number.

It is not a de Polignac number, because 43020697 - 2¹¹ = 43018649 is a prime.

It is not a weakly prime, because it can be changed into another prime (43029697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21510348 + 21510349.

It is an arithmetic number, because the mean of its divisors is an integer number (21510349).

Almost surely, 2^43020697 is an apocalyptic number.

It is an amenable number.

43020697 is a deficient number, since it is larger than the sum of its proper divisors (1).

43020697 is an equidigital number, since it uses as much as digits as its factorization.

43020697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 43020697 is about 6559.0164659040. The cubic root of 43020697 is about 350.3960061931.

The spelling of 43020697 in words is "forty-three million, twenty thousand, six hundred ninety-seven".