39070645 has 8 divisors (see below), whose sum is σ = 46930104. Its totient is φ = 31226304.

The previous prime is 39070639. The next prime is 39070649. The reversal of 39070645 is 54607093.

39070645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 8168164 + 30902481 = 2858^2 + 5559^2 .

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 39070645 - 2³ = 39070637 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 39070645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39070649) 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, 3027 + ... + 9343.

It is an arithmetic number, because the mean of its divisors is an integer number (5866263).

Almost surely, 2^39070645 is an apocalyptic number.

It is an amenable number.

39070645 is a deficient number, since it is larger than the sum of its proper divisors (7859459).

39070645 is a wasteful number, since it uses less digits than its factorization.

39070645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7559.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 39070645 is about 6250.6515660369. The cubic root of 39070645 is about 339.3257832957.

The spelling of 39070645 in words is "thirty-nine million, seventy thousand, six hundred forty-five".