43478997 has 8 divisors (see below), whose sum is σ = 58076160. Its totient is φ = 28933920.

The previous prime is 43478933. The next prime is 43479053. The reversal of 43478997 is 79987434.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 43478997 - 2⁶ = 43478933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43478927) 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 7 ways as a sum of consecutive naturals, for example, 11029 + ... + 14442.

It is an arithmetic number, because the mean of its divisors is an integer number (7259520).

Almost surely, 2^43478997 is an apocalyptic number.

It is an amenable number.

43478997 is a deficient number, since it is larger than the sum of its proper divisors (14597163).

43478997 is a wasteful number, since it uses less digits than its factorization.

43478997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26043.

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

The square root of 43478997 is about 6593.8605535756. The cubic root of 43478997 is about 351.6358714102.

The spelling of 43478997 in words is "forty-three million, four hundred seventy-eight thousand, nine hundred ninety-seven".