47949318 has 24 divisors (see below), whose sum is σ = 104847600. Its totient is φ = 15835824.

The previous prime is 47949313. The next prime is 47949323. The reversal of 47949318 is 81394974.

47949318 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (47949313) and next prime (47949323).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47949311) 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 11 ways as a sum of consecutive naturals, for example, 10258 + ... + 14181.

It is an arithmetic number, because the mean of its divisors is an integer number (4368650).

Almost surely, 2^47949318 is an apocalyptic number.

47949318 is an abundant number, since it is smaller than the sum of its proper divisors (56898282).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47949318 is a wasteful number, since it uses less digits than its factorization.

47949318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24556 (or 24553 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 47949318 is about 6924.5446059651. The cubic root of 47949318 is about 363.2961633739.

The spelling of 47949318 in words is "forty-seven million, nine hundred forty-nine thousand, three hundred eighteen".