41642989 has 2 divisors, whose sum is σ = 41642990. Its totient is φ = 41642988.

The previous prime is 41642983. The next prime is 41642999. The reversal of 41642989 is 98924614.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28196100 + 13446889 = 5310^2 + 3667^2 .

It is a cyclic number.

It is not a de Polignac number, because 41642989 - 2³ = 41642981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41642981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20821494 + 20821495.

It is an arithmetic number, because the mean of its divisors is an integer number (20821495).

Almost surely, 2^41642989 is an apocalyptic number.

It is an amenable number.

41642989 is a deficient number, since it is larger than the sum of its proper divisors (1).

41642989 is an equidigital number, since it uses as much as digits as its factorization.

41642989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 43.

The square root of 41642989 is about 6453.1379188733. The cubic root of 41642989 is about 346.6149560238.

The spelling of 41642989 in words is "forty-one million, six hundred forty-two thousand, nine hundred eighty-nine".