39867089 has 2 divisors, whose sum is σ = 39867090. Its totient is φ = 39867088.

The previous prime is 39867071. The next prime is 39867103. The reversal of 39867089 is 98076893.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20857489 + 19009600 = 4567^2 + 4360^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39867089 is a prime.

It is not a weakly prime, because it can be changed into another prime (39867589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19933544 + 19933545.

It is an arithmetic number, because the mean of its divisors is an integer number (19933545).

Almost surely, 2^39867089 is an apocalyptic number.

It is an amenable number.

39867089 is a deficient number, since it is larger than the sum of its proper divisors (1).

39867089 is an equidigital number, since it uses as much as digits as its factorization.

39867089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 653184, while the sum is 50.

The square root of 39867089 is about 6314.0390401074. The cubic root of 39867089 is about 341.6159779916.

The spelling of 39867089 in words is "thirty-nine million, eight hundred sixty-seven thousand, eighty-nine".