501947307 has 16 divisors (see below), whose sum is σ = 749486080. Its totient is φ = 331994376.

The previous prime is 501947269. The next prime is 501947323. The reversal of 501947307 is 703749105.

It is a happy number.

It is not a de Polignac number, because 501947307 - 2¹⁶ = 501881771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (501947207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69763 + ... + 76620.

It is an arithmetic number, because the mean of its divisors is an integer number (46842880).

Almost surely, 2^501947307 is an apocalyptic number.

501947307 is a deficient number, since it is larger than the sum of its proper divisors (247538773).

501947307 is a wasteful number, since it uses less digits than its factorization.

501947307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146519 (or 146513 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 501947307 is about 22404.1805697062. The cubic root of 501947307 is about 794.7295769461.

It can be divided in two parts, 5019 and 47307, that added together give a triangular number (52326 = T₃₂₃).

The spelling of 501947307 in words is "five hundred one million, nine hundred forty-seven thousand, three hundred seven".