39347139 has 8 divisors (see below), whose sum is σ = 56498512. Its totient is φ = 24213600.

The previous prime is 39347137. The next prime is 39347149. The reversal of 39347139 is 93174393.

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

It is not a de Polignac number, because 39347139 - 2¹ = 39347137 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 1008901 = 39347139 / (3 + 9 + 3 + 4 + 7 + 1 + 3 + 9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 39347097 and 39347106.

It is not an unprimeable number, because it can be changed into a prime (39347137) 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, 504412 + ... + 504489.

It is an arithmetic number, because the mean of its divisors is an integer number (7062314).

Almost surely, 2^39347139 is an apocalyptic number.

39347139 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

39347139 is a deficient number, since it is larger than the sum of its proper divisors (17151373).

39347139 is a wasteful number, since it uses less digits than its factorization.

39347139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008917.

The product of its digits is 61236, while the sum is 39.

The square root of 39347139 is about 6272.7297885370. The cubic root of 39347139 is about 340.1243460983.

The spelling of 39347139 in words is "thirty-nine million, three hundred forty-seven thousand, one hundred thirty-nine".