307048939 has 4 divisors (see below), whose sum is σ = 314189656. Its totient is φ = 299908224.

The previous prime is 307048913. The next prime is 307048957. The reversal of 307048939 is 939840703.

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

It is a cyclic number.

It is not a de Polignac number, because 307048939 - 2¹¹ = 307046891 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43), and also a Moran number because the ratio is a prime number: 7140673 = 307048939 / (3 + 0 + 7 + 0 + 4 + 8 + 9 + 3 + 9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 307048895 and 307048904.

It is not an unprimeable number, because it can be changed into a prime (307048909) 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, 3570294 + ... + 3570379.

It is an arithmetic number, because the mean of its divisors is an integer number (78547414).

Almost surely, 2^307048939 is an apocalyptic number.

307048939 is a deficient number, since it is larger than the sum of its proper divisors (7140717).

307048939 is an equidigital number, since it uses as much as digits as its factorization.

307048939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7140716.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 307048939 is about 17522.8119604132. The cubic root of 307048939 is about 674.6355153390.

The spelling of 307048939 in words is "three hundred seven million, forty-eight thousand, nine hundred thirty-nine".