43878879 has 12 divisors (see below), whose sum is σ = 69142632. Its totient is φ = 26593200.

The previous prime is 43878841. The next prime is 43878889. The reversal of 43878879 is 97887834.

It is not a de Polignac number, because 43878879 - 2¹¹ = 43876831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43878889) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 221512 + ... + 221709.

It is an arithmetic number, because the mean of its divisors is an integer number (5761886).

Almost surely, 2^43878879 is an apocalyptic number.

43878879 is a deficient number, since it is larger than the sum of its proper divisors (25263753).

43878879 is a wasteful number, since it uses less digits than its factorization.

43878879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443238 (or 443235 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 54.

The square root of 43878879 is about 6624.1134501154. The cubic root of 43878879 is about 352.7105969569.

The spelling of 43878879 in words is "forty-three million, eight hundred seventy-eight thousand, eight hundred seventy-nine".