43423147 has 2 divisors, whose sum is σ = 43423148. Its totient is φ = 43423146.

The previous prime is 43423111. The next prime is 43423153. The reversal of 43423147 is 74132434.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43423147 - 2⁷ = 43423019 is a prime.

It is not a weakly prime, because it can be changed into another prime (43429147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21711573 + 21711574.

It is an arithmetic number, because the mean of its divisors is an integer number (21711574).

Almost surely, 2^43423147 is an apocalyptic number.

43423147 is a deficient number, since it is larger than the sum of its proper divisors (1).

43423147 is an equidigital number, since it uses as much as digits as its factorization.

43423147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 28.

The square root of 43423147 is about 6589.6241926228. The cubic root of 43423147 is about 351.4852448267.

The spelling of 43423147 in words is "forty-three million, four hundred twenty-three thousand, one hundred forty-seven".