39389457 has 8 divisors (see below), whose sum is σ = 52553440. Its totient is φ = 26242560.

The previous prime is 39389447. The next prime is 39389507. The reversal of 39389457 is 75498393.

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

It is not a de Polignac number, because 39389457 - 2¹¹ = 39387409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39389447) 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, 2769 + ... + 9297.

It is an arithmetic number, because the mean of its divisors is an integer number (6569180).

Almost surely, 2^39389457 is an apocalyptic number.

It is an amenable number.

39389457 is a deficient number, since it is larger than the sum of its proper divisors (13163983).

39389457 is a wasteful number, since it uses less digits than its factorization.

39389457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8543.

The product of its digits is 816480, while the sum is 48.

The square root of 39389457 is about 6276.1020546196. The cubic root of 39389457 is about 340.2462374266.

The spelling of 39389457 in words is "thirty-nine million, three hundred eighty-nine thousand, four hundred fifty-seven".