43020473 has 2 divisors, whose sum is σ = 43020474. Its totient is φ = 43020472.

The previous prime is 43020469. The next prime is 43020517. The reversal of 43020473 is 37402034.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28174864 + 14845609 = 5308^2 + 3853^2 .

It is a cyclic number.

It is not a de Polignac number, because 43020473 - 2² = 43020469 is a prime.

It is a super-2 number, since 2×43020473² = 3701522194287458, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (43020403) 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, 21510236 + 21510237.

It is an arithmetic number, because the mean of its divisors is an integer number (21510237).

Almost surely, 2^43020473 is an apocalyptic number.

It is an amenable number.

43020473 is a deficient number, since it is larger than the sum of its proper divisors (1).

43020473 is an equidigital number, since it uses as much as digits as its factorization.

43020473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 43020473 is about 6558.9993901509. Note that the first 3 decimals coincide. The cubic root of 43020473 is about 350.3953980451.

The spelling of 43020473 in words is "forty-three million, twenty thousand, four hundred seventy-three".