39489854 has 4 divisors (see below), whose sum is σ = 59234784. Its totient is φ = 19744926.

The previous prime is 39489829. The next prime is 39489887. The reversal of 39489854 is 45898493.

It is a happy number.

39489854 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9872462 + ... + 9872465.

It is an arithmetic number, because the mean of its divisors is an integer number (14808696).

Almost surely, 2^39489854 is an apocalyptic number.

39489854 is a deficient number, since it is larger than the sum of its proper divisors (19744930).

39489854 is a wasteful number, since it uses less digits than its factorization.

39489854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19744929.

The product of its digits is 1244160, while the sum is 50.

The square root of 39489854 is about 6284.0953207284. The cubic root of 39489854 is about 340.5350686919.

The spelling of 39489854 in words is "thirty-nine million, four hundred eighty-nine thousand, eight hundred fifty-four".