39189089 has 4 divisors (see below), whose sum is σ = 39741120. Its totient is φ = 38637060.

The previous prime is 39189047. The next prime is 39189107. The reversal of 39189089 is 98098193.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 39189089 - 2⁸ = 39188833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39189019) 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, 275909 + ... + 276050.

It is an arithmetic number, because the mean of its divisors is an integer number (9935280).

Almost surely, 2^39189089 is an apocalyptic number.

It is an amenable number.

39189089 is a deficient number, since it is larger than the sum of its proper divisors (552031).

39189089 is an equidigital number, since it uses as much as digits as its factorization.

39189089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552030.

The product of its (nonzero) digits is 139968, while the sum is 47.

The square root of 39189089 is about 6260.1189285827. The cubic root of 39189089 is about 339.6683299636.

The spelling of 39189089 in words is "thirty-nine million, one hundred eighty-nine thousand, eighty-nine".