41870729 has 4 divisors (see below), whose sum is σ = 42302484. Its totient is φ = 41438976.

The previous prime is 41870723. The next prime is 41870743. The reversal of 41870729 is 92707814.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 92707814 = 2 ⋅46353907.

It can be written as a sum of positive squares in 2 ways, for example, as 16418704 + 25452025 = 4052^2 + 5045^2 .

It is a cyclic number.

It is not a de Polignac number, because 41870729 - 2²⁰ = 40822153 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 41870692 and 41870701.

It is not an unprimeable number, because it can be changed into a prime (41870723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215732 + ... + 215925.

It is an arithmetic number, because the mean of its divisors is an integer number (10575621).

Almost surely, 2^41870729 is an apocalyptic number.

It is an amenable number.

41870729 is a deficient number, since it is larger than the sum of its proper divisors (431755).

41870729 is an equidigital number, since it uses as much as digits as its factorization.

41870729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431754.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 41870729 is about 6470.7595381068. The cubic root of 41870729 is about 347.2456714370.

The spelling of 41870729 in words is "forty-one million, eight hundred seventy thousand, seven hundred twenty-nine".