43869697 has 4 divisors (see below), whose sum is σ = 43912960. Its totient is φ = 43826436.

The previous prime is 43869677. The next prime is 43869701. The reversal of 43869697 is 79696834.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43869697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43869607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20073 + ... + 22150.

It is an arithmetic number, because the mean of its divisors is an integer number (10978240).

Almost surely, 2^43869697 is an apocalyptic number.

It is an amenable number.

43869697 is a deficient number, since it is larger than the sum of its proper divisors (43263).

43869697 is a wasteful number, since it uses less digits than its factorization.

43869697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43262.

The product of its digits is 1959552, while the sum is 52.

The square root of 43869697 is about 6623.4203399754. The cubic root of 43869697 is about 352.6859927533.

The spelling of 43869697 in words is "forty-three million, eight hundred sixty-nine thousand, six hundred ninety-seven".