43478799 has 24 divisors (see below), whose sum is σ = 71747712. Its totient is φ = 22932000.

The previous prime is 43478797. The next prime is 43478839. The reversal of 43478799 is 99787434.

It is a happy number.

It is not a de Polignac number, because 43478799 - 2¹ = 43478797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43478797) 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, 2577 + ... + 9674.

It is an arithmetic number, because the mean of its divisors is an integer number (2989488).

Almost surely, 2^43478799 is an apocalyptic number.

43478799 is a deficient number, since it is larger than the sum of its proper divisors (28268913).

43478799 is a wasteful number, since it uses less digits than its factorization.

43478799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12287 (or 12274 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 51.

The square root of 43478799 is about 6593.8455395922. The cubic root of 43478799 is about 351.6353376352.

The spelling of 43478799 in words is "forty-three million, four hundred seventy-eight thousand, seven hundred ninety-nine".