43680959 has 4 divisors (see below), whose sum is σ = 49921104. Its totient is φ = 37440816.

The previous prime is 43680947. The next prime is 43680971. The reversal of 43680959 is 95908634.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (43680947) and next prime (43680971).

It is not a de Polignac number, because 43680959 - 2²⁰ = 42632383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3120062 + ... + 3120075.

It is an arithmetic number, because the mean of its divisors is an integer number (12480276).

Almost surely, 2^43680959 is an apocalyptic number.

43680959 is a deficient number, since it is larger than the sum of its proper divisors (6240145).

43680959 is an equidigital number, since it uses as much as digits as its factorization.

43680959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6240144.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 43680959 is about 6609.1572079956. The cubic root of 43680959 is about 352.1794856638.

The spelling of 43680959 in words is "forty-three million, six hundred eighty thousand, nine hundred fifty-nine".