43287641 has 8 divisors (see below), whose sum is σ = 43677000. Its totient is φ = 42900480.

The previous prime is 43287619. The next prime is 43287649. The reversal of 43287641 is 14678234.

It can be written as a sum of positive squares in 4 ways, for example, as 5107600 + 38180041 = 2260^2 + 6179^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 43287641 - 2⁶ = 43287577 is a prime.

It is a super-3 number, since 3×43287641³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43287649) 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, 96185 + ... + 96633.

It is an arithmetic number, because the mean of its divisors is an integer number (5459625).

Almost surely, 2^43287641 is an apocalyptic number.

It is an amenable number.

43287641 is a deficient number, since it is larger than the sum of its proper divisors (389359).

43287641 is a wasteful number, since it uses less digits than its factorization.

43287641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1099.

The product of its digits is 32256, while the sum is 35.

The square root of 43287641 is about 6579.3343888269. The cubic root of 43287641 is about 351.1192496385.

The spelling of 43287641 in words is "forty-three million, two hundred eighty-seven thousand, six hundred forty-one".