39487009 has 8 divisors (see below), whose sum is σ = 40944960. Its totient is φ = 38035536.

The previous prime is 39486991. The next prime is 39487027. The reversal of 39487009 is 90078493.

It is an interprime number because it is at equal distance from previous prime (39486991) and next prime (39487027).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 39487009 - 2⁹ = 39486497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39487079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13234 + ... + 15940.

It is an arithmetic number, because the mean of its divisors is an integer number (5118120).

Almost surely, 2^39487009 is an apocalyptic number.

It is an amenable number.

39487009 is a deficient number, since it is larger than the sum of its proper divisors (1457951).

39487009 is a wasteful number, since it uses less digits than its factorization.

39487009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3239.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 39487009 is about 6283.8689515298. The cubic root of 39487009 is about 340.5268906795.

The spelling of 39487009 in words is "thirty-nine million, four hundred eighty-seven thousand, nine".