43945679 has 2 divisors, whose sum is σ = 43945680. Its totient is φ = 43945678.

The previous prime is 43945669. The next prime is 43945687. The reversal of 43945679 is 97654934.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43945679 - 2¹⁶ = 43880143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43945609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21972839 + 21972840.

It is an arithmetic number, because the mean of its divisors is an integer number (21972840).

Almost surely, 2^43945679 is an apocalyptic number.

43945679 is a deficient number, since it is larger than the sum of its proper divisors (1).

43945679 is an equidigital number, since it uses as much as digits as its factorization.

43945679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 816480, while the sum is 47.

The square root of 43945679 is about 6629.1537167273. The cubic root of 43945679 is about 352.8894918473.

The spelling of 43945679 in words is "forty-three million, nine hundred forty-five thousand, six hundred seventy-nine".