43478859 has 24 divisors (see below), whose sum is σ = 63269440. Its totient is φ = 26484192.

The previous prime is 43478839. The next prime is 43478861. The reversal of 43478859 is 95887434.

It is a de Polignac number, because none of the positive numbers 2^k-43478859 is a prime.

It is a super-2 number, since 2×43478859² = 3780822359883762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43478839) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47484 + ... + 48390.

Almost surely, 2^43478859 is an apocalyptic number.

43478859 is a deficient number, since it is larger than the sum of its proper divisors (19790581).

43478859 is a wasteful number, since it uses less digits than its factorization.

43478859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987 (or 958 counting only the distinct ones).

The product of its digits is 967680, while the sum is 48.

The square root of 43478859 is about 6593.8500892877. The cubic root of 43478859 is about 351.6354993854.

The spelling of 43478859 in words is "forty-three million, four hundred seventy-eight thousand, eight hundred fifty-nine".