41642729 has 2 divisors, whose sum is σ = 41642730. Its totient is φ = 41642728.

The previous prime is 41642701. The next prime is 41642743. The reversal of 41642729 is 92724614.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41306329 + 336400 = 6427^2 + 580^2 .

It is a cyclic number.

It is not a de Polignac number, because 41642729 - 2⁸ = 41642473 is a prime.

It is not a weakly prime, because it can be changed into another prime (41642759) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20821364 + 20821365.

It is an arithmetic number, because the mean of its divisors is an integer number (20821365).

Almost surely, 2^41642729 is an apocalyptic number.

It is an amenable number.

41642729 is a deficient number, since it is larger than the sum of its proper divisors (1).

41642729 is an equidigital number, since it uses as much as digits as its factorization.

41642729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 35.

The square root of 41642729 is about 6453.1177736037. The cubic root of 41642729 is about 346.6142346533.

The spelling of 41642729 in words is "forty-one million, six hundred forty-two thousand, seven hundred twenty-nine".