41643789 has 8 divisors (see below), whose sum is σ = 60572832. Its totient is φ = 25238640.

The previous prime is 41643713. The next prime is 41643809. The reversal of 41643789 is 98734614.

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

It is not a de Polignac number, because 41643789 - 2¹³ = 41635597 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 41643789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41643089) 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, 630934 + ... + 630999.

It is an arithmetic number, because the mean of its divisors is an integer number (7571604).

Almost surely, 2^41643789 is an apocalyptic number.

It is an amenable number.

41643789 is a deficient number, since it is larger than the sum of its proper divisors (18929043).

41643789 is a wasteful number, since it uses less digits than its factorization.

41643789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1261947.

The product of its digits is 145152, while the sum is 42.

The square root of 41643789 is about 6453.1999039236. The cubic root of 41643789 is about 346.6171756066.

The spelling of 41643789 in words is "forty-one million, six hundred forty-three thousand, seven hundred eighty-nine".