43473997 has 8 divisors (see below), whose sum is σ = 51287552. Its totient is φ = 36061200.

The previous prime is 43473977. The next prime is 43474009. The reversal of 43473997 is 79937434.

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 43473997 - 2⁷ = 43473869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43473967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99954 + ... + 100387.

It is an arithmetic number, because the mean of its divisors is an integer number (6410944).

Almost surely, 2^43473997 is an apocalyptic number.

It is an amenable number.

43473997 is a deficient number, since it is larger than the sum of its proper divisors (7813555).

43473997 is a wasteful number, since it uses less digits than its factorization.

43473997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200379.

The product of its digits is 571536, while the sum is 46.

The square root of 43473997 is about 6593.4814021122. The cubic root of 43473997 is about 351.6223917466.

The spelling of 43473997 in words is "forty-three million, four hundred seventy-three thousand, nine hundred ninety-seven".