43432379 has 2 divisors, whose sum is σ = 43432380. Its totient is φ = 43432378.

The previous prime is 43432321. The next prime is 43432391. The reversal of 43432379 is 97323434.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43432379 - 2²⁴ = 26655163 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (43432679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21716189 + 21716190.

It is an arithmetic number, because the mean of its divisors is an integer number (21716190).

Almost surely, 2^43432379 is an apocalyptic number.

43432379 is a deficient number, since it is larger than the sum of its proper divisors (1).

43432379 is an equidigital number, since it uses as much as digits as its factorization.

43432379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 35.

The square root of 43432379 is about 6590.3246505768. The cubic root of 43432379 is about 351.5101522940.

The spelling of 43432379 in words is "forty-three million, four hundred thirty-two thousand, three hundred seventy-nine".