307947 has 8 divisors (see below), whose sum is σ = 428544. Its totient is φ = 196328.

The previous prime is 307939. The next prime is 307969. The reversal of 307947 is 749703.

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

It is not a de Polignac number, because 307947 - 2³ = 307939 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 307947.

It is not an unprimeable number, because it can be changed into a prime (307147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2163 + ... + 2300.

It is an arithmetic number, because the mean of its divisors is an integer number (53568).

2³⁰⁷⁹⁴⁷ is an apocalyptic number.

307947 is a deficient number, since it is larger than the sum of its proper divisors (120597).

307947 is a wasteful number, since it uses less digits than its factorization.

307947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4489.

The product of its (nonzero) digits is 5292, while the sum is 30.

The square root of 307947 is about 554.9297252806. The cubic root of 307947 is about 67.5292602909.

The spelling of 307947 in words is "three hundred seven thousand, nine hundred forty-seven".