43478715 has 16 divisors (see below), whose sum is σ = 79504128. Its totient is φ = 19875936.

The previous prime is 43478711. The next prime is 43478723. The reversal of 43478715 is 51787434.

It is not a de Polignac number, because 43478715 - 2² = 43478711 is a prime.

It is not an unprimeable number, because it can be changed into a prime (43478711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206937 + ... + 207146.

It is an arithmetic number, because the mean of its divisors is an integer number (4969008).

Almost surely, 2^43478715 is an apocalyptic number.

43478715 is a deficient number, since it is larger than the sum of its proper divisors (36025413).

43478715 is a wasteful number, since it uses less digits than its factorization.

43478715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414098.

The product of its digits is 94080, while the sum is 39.

The square root of 43478715 is about 6593.8391700132. The cubic root of 43478715 is about 351.6351111847.

The spelling of 43478715 in words is "forty-three million, four hundred seventy-eight thousand, seven hundred fifteen".