307947085 has 8 divisors (see below), whose sum is σ = 382279320. Its totient is φ = 237862464.

The previous prime is 307947083. The next prime is 307947097. The reversal of 307947085 is 580749703.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 16152361 + 291794724 = 4019^2 + 17082^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 307947085 - 2¹ = 307947083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (307947083) 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, 1061742 + ... + 1062031.

It is an arithmetic number, because the mean of its divisors is an integer number (47784915).

Almost surely, 2^307947085 is an apocalyptic number.

It is an amenable number.

307947085 is a deficient number, since it is larger than the sum of its proper divisors (74332235).

307947085 is a wasteful number, since it uses less digits than its factorization.

307947085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2123807.

The product of its (nonzero) digits is 211680, while the sum is 43.

The square root of 307947085 is about 17548.4211540526. The cubic root of 307947085 is about 675.2926650410.

The spelling of 307947085 in words is "three hundred seven million, nine hundred forty-seven thousand, eighty-five".