39347037947 has 8 divisors (see below), whose sum is σ = 45039313152. Its totient is φ = 33672580200.

The previous prime is 39347037883. The next prime is 39347037953. The reversal of 39347037947 is 74973074393.

It is a happy number.

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

It is not a de Polignac number, because 39347037947 - 2⁶ = 39347037883 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 39347037892 and 39347037901.

It is not an unprimeable number, because it can be changed into a prime (39347037967) 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, 4449629 + ... + 4458462.

It is an arithmetic number, because the mean of its divisors is an integer number (5629914144).

Almost surely, 2^39347037947 is an apocalyptic number.

39347037947 is a deficient number, since it is larger than the sum of its proper divisors (5692275205).

39347037947 is an equidigital number, since it uses as much as digits as its factorization.

39347037947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8908729.

The product of its (nonzero) digits is 12002256, while the sum is 56.

The spelling of 39347037947 in words is "thirty-nine billion, three hundred forty-seven million, thirty-seven thousand, nine hundred forty-seven".