39730885 has 4 divisors (see below), whose sum is σ = 47677068. Its totient is φ = 31784704.

The previous prime is 39730883. The next prime is 39730897. The reversal of 39730885 is 58803793.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28965924 + 10764961 = 5382^2 + 3281^2 .

It is a cyclic number.

It is not a de Polignac number, because 39730885 - 2¹ = 39730883 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 (39730883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3973084 + ... + 3973093.

It is an arithmetic number, because the mean of its divisors is an integer number (11919267).

Almost surely, 2^39730885 is an apocalyptic number.

It is an amenable number.

39730885 is a deficient number, since it is larger than the sum of its proper divisors (7946183).

39730885 is an equidigital number, since it uses as much as digits as its factorization.

39730885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7946182.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 39730885 is about 6303.2440060654. The cubic root of 39730885 is about 341.2264958967.

The spelling of 39730885 in words is "thirty-nine million, seven hundred thirty thousand, eight hundred eighty-five".