47388307 has 4 divisors (see below), whose sum is σ = 48282480. Its totient is φ = 46494136.

The previous prime is 47388287. The next prime is 47388323. The reversal of 47388307 is 70388374.

47388307 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-47388307 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47388307.

It is not an unprimeable number, because it can be changed into a prime (47388347) 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, 447007 + ... + 447112.

It is an arithmetic number, because the mean of its divisors is an integer number (12070620).

Almost surely, 2^47388307 is an apocalyptic number.

47388307 is a deficient number, since it is larger than the sum of its proper divisors (894173).

47388307 is an equidigital number, since it uses as much as digits as its factorization.

47388307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894172.

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 47388307 is about 6883.9165451072. The cubic root of 47388307 is about 361.8737362729.

The spelling of 47388307 in words is "forty-seven million, three hundred eighty-eight thousand, three hundred seven".