39875705 has 8 divisors (see below), whose sum is σ = 47889672. Its totient is φ = 31874688.

The previous prime is 39875669. The next prime is 39875707. The reversal of 39875705 is 50757893.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4923961 + 34951744 = 2219^2 + 5912^2 .

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-39875705 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (39875707) 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, 5879 + ... + 10691.

It is an arithmetic number, because the mean of its divisors is an integer number (5986209).

Almost surely, 2^39875705 is an apocalyptic number.

It is an amenable number.

39875705 is a deficient number, since it is larger than the sum of its proper divisors (8013967).

39875705 is a wasteful number, since it uses less digits than its factorization.

39875705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6475.

The product of its (nonzero) digits is 264600, while the sum is 44.

The square root of 39875705 is about 6314.7212923454. The cubic root of 39875705 is about 341.6405860190.

The spelling of 39875705 in words is "thirty-nine million, eight hundred seventy-five thousand, seven hundred five".