39489493 has 8 divisors (see below), whose sum is σ = 40118400. Its totient is φ = 38863968.

The previous prime is 39489481. The next prime is 39489511. The reversal of 39489493 is 39498493.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39489493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39489403) 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, 32505 + ... + 33697.

It is an arithmetic number, because the mean of its divisors is an integer number (5014800).

Almost surely, 2^39489493 is an apocalyptic number.

It is an amenable number.

39489493 is a deficient number, since it is larger than the sum of its proper divisors (628907).

39489493 is a wasteful number, since it uses less digits than its factorization.

39489493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1691.

The product of its digits is 839808, while the sum is 49.

The square root of 39489493 is about 6284.0665973556. The cubic root of 39489493 is about 340.5340310115.

The spelling of 39489493 in words is "thirty-nine million, four hundred eighty-nine thousand, four hundred ninety-three".