43942879 has 2 divisors, whose sum is σ = 43942880. Its totient is φ = 43942878.

The previous prime is 43942853. The next prime is 43942891. The reversal of 43942879 is 97824934.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43942879 - 2²³ = 35554271 is a prime.

It is a super-2 number, since 2×43942879² = 3861953229617282, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43942849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21971439 + 21971440.

It is an arithmetic number, because the mean of its divisors is an integer number (21971440).

Almost surely, 2^43942879 is an apocalyptic number.

43942879 is a deficient number, since it is larger than the sum of its proper divisors (1).

43942879 is an equidigital number, since it uses as much as digits as its factorization.

43942879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 435456, while the sum is 46.

The square root of 43942879 is about 6628.9425250186. The cubic root of 43942879 is about 352.8819969006.

The spelling of 43942879 in words is "forty-three million, nine hundred forty-two thousand, eight hundred seventy-nine".