39579445 has 8 divisors (see below), whose sum is σ = 47529144. Its totient is φ = 31641024.

The previous prime is 39579443. The next prime is 39579469. The reversal of 39579445 is 54497593.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1164241 + 38415204 = 1079^2 + 6198^2 .

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 39579445 - 2¹ = 39579443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 39579395 and 39579404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39579443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11907 + ... + 14863.

It is an arithmetic number, because the mean of its divisors is an integer number (5941143).

Almost surely, 2^39579445 is an apocalyptic number.

It is an amenable number.

39579445 is a deficient number, since it is larger than the sum of its proper divisors (7949699).

39579445 is a wasteful number, since it uses less digits than its factorization.

39579445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5639.

The product of its digits is 680400, while the sum is 46.

The square root of 39579445 is about 6291.2196750710. The cubic root of 39579445 is about 340.7923992157.

The spelling of 39579445 in words is "thirty-nine million, five hundred seventy-nine thousand, four hundred forty-five".