43349039 has 2 divisors, whose sum is σ = 43349040. Its totient is φ = 43349038.

The previous prime is 43349029. The next prime is 43349063. The reversal of 43349039 is 93094334.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43349039 - 2⁴ = 43349023 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43349029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21674519 + 21674520.

It is an arithmetic number, because the mean of its divisors is an integer number (21674520).

Almost surely, 2^43349039 is an apocalyptic number.

43349039 is a deficient number, since it is larger than the sum of its proper divisors (1).

43349039 is an equidigital number, since it uses as much as digits as its factorization.

43349039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 35.

The square root of 43349039 is about 6583.9987089914. The cubic root of 43349039 is about 351.2851771780.

The spelling of 43349039 in words is "forty-three million, three hundred forty-nine thousand, thirty-nine".