39641089 has 4 divisors (see below), whose sum is σ = 39653956. Its totient is φ = 39628224.

The previous prime is 39641083. The next prime is 39641101. The reversal of 39641089 is 98014693.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 20430400 + 19210689 = 4520^2 + 4383^2 .

It is a cyclic number.

It is not a de Polignac number, because 39641089 - 2¹⁷ = 39510017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39641083) 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, 1237 + ... + 8989.

It is an arithmetic number, because the mean of its divisors is an integer number (9913489).

It is a Proth number, since it is equal to 4839 ⋅ 2¹³ + 1 and 4839 < 2¹³.

Almost surely, 2^39641089 is an apocalyptic number.

It is an amenable number.

39641089 is a deficient number, since it is larger than the sum of its proper divisors (12867).

39641089 is an equidigital number, since it uses as much as digits as its factorization.

39641089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12866.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 39641089 is about 6296.1169779476. The cubic root of 39641089 is about 340.9692326681.

The spelling of 39641089 in words is "thirty-nine million, six hundred forty-one thousand, eighty-nine".