39650005 has 8 divisors (see below), whose sum is σ = 48001752. Its totient is φ = 31438848.

The previous prime is 39650003. The next prime is 39650029. The reversal of 39650005 is 50005693.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3541924 + 36108081 = 1882^2 + 6009^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 39650005 - 2¹ = 39650003 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 (39650003) 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, 34524 + ... + 35653.

It is an arithmetic number, because the mean of its divisors is an integer number (6000219).

Almost surely, 2^39650005 is an apocalyptic number.

It is an amenable number.

39650005 is a deficient number, since it is larger than the sum of its proper divisors (8351747).

39650005 is a wasteful number, since it uses less digits than its factorization.

39650005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70295.

The product of its (nonzero) digits is 4050, while the sum is 28.

The square root of 39650005 is about 6296.8249935980. The cubic root of 39650005 is about 340.9947941403.

Adding to 39650005 its reverse (50005693), we get a palindrome (89655698).

The spelling of 39650005 in words is "thirty-nine million, six hundred fifty thousand, five".