47280307 has 4 divisors (see below), whose sum is σ = 48055456. Its totient is φ = 46505160.

The previous prime is 47280283. The next prime is 47280313. The reversal of 47280307 is 70308274.

47280307 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47280307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47280367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 387483 + ... + 387604.

It is an arithmetic number, because the mean of its divisors is an integer number (12013864).

Almost surely, 2^47280307 is an apocalyptic number.

47280307 is a deficient number, since it is larger than the sum of its proper divisors (775149).

47280307 is an equidigital number, since it uses as much as digits as its factorization.

47280307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775148.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 47280307 is about 6876.0676989105. The cubic root of 47280307 is about 361.5986185362.

The spelling of 47280307 in words is "forty-seven million, two hundred eighty thousand, three hundred seven".