43397313 has 8 divisors (see below), whose sum is σ = 58073088. Its totient is φ = 28826544.

The previous prime is 43397279. The next prime is 43397317. The reversal of 43397313 is 31379334.

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

It is not a de Polignac number, because 43397313 - 2²² = 39203009 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (43397317) 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, 25281 + ... + 26942.

It is an arithmetic number, because the mean of its divisors is an integer number (7259136).

Almost surely, 2^43397313 is an apocalyptic number.

It is an amenable number.

43397313 is a deficient number, since it is larger than the sum of its proper divisors (14675775).

43397313 is a wasteful number, since it uses less digits than its factorization.

43397313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52503.

The product of its digits is 20412, while the sum is 33.

The square root of 43397313 is about 6587.6636981558. The cubic root of 43397313 is about 351.4155272393.

The spelling of 43397313 in words is "forty-three million, three hundred ninety-seven thousand, three hundred thirteen".