39920959 has 8 divisors (see below), whose sum is σ = 43133552. Its totient is φ = 36728640.

The previous prime is 39920953. The next prime is 39920971. The reversal of 39920959 is 95902993.

It is a happy number.

39920959 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 39920959 - 2⁷ = 39920831 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 (39920953) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 837 + ... + 8974.

It is an arithmetic number, because the mean of its divisors is an integer number (5391694).

Almost surely, 2^39920959 is an apocalyptic number.

39920959 is a deficient number, since it is larger than the sum of its proper divisors (3212593).

39920959 is a wasteful number, since it uses less digits than its factorization.

39920959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10137.

The product of its (nonzero) digits is 196830, while the sum is 46.

The square root of 39920959 is about 6318.3034906532. The cubic root of 39920959 is about 341.7697771153.

The spelling of 39920959 in words is "thirty-nine million, nine hundred twenty thousand, nine hundred fifty-nine".