43997107 has 16 divisors (see below), whose sum is σ = 56339712. Its totient is φ = 33354720.

The previous prime is 43997101. The next prime is 43997113. The reversal of 43997107 is 70179934.

It is an interprime number because it is at equal distance from previous prime (43997101) and next prime (43997113).

It is not a de Polignac number, because 43997107 - 2²³ = 35608499 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43997107.

It is not an unprimeable number, because it can be changed into a prime (43997101) 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 15 ways as a sum of consecutive naturals, for example, 4873 + ... + 10570.

It is an arithmetic number, because the mean of its divisors is an integer number (3521232).

Almost surely, 2^43997107 is an apocalyptic number.

43997107 is a deficient number, since it is larger than the sum of its proper divisors (12342605).

43997107 is a wasteful number, since it uses less digits than its factorization.

43997107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15498.

The product of its (nonzero) digits is 47628, while the sum is 40.

The square root of 43997107 is about 6633.0315090462. The cubic root of 43997107 is about 353.0270960163.

The spelling of 43997107 in words is "forty-three million, nine hundred ninety-seven thousand, one hundred seven".