47318636 has 12 divisors (see below), whose sum is σ = 86408112. Its totient is φ = 22630608.

The previous prime is 47318629. The next prime is 47318647. The reversal of 47318636 is 63681374.

It is a super-3 number, since 3×47318636³ (a number of 24 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 47318636.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 257075 + ... + 257258.

It is an arithmetic number, because the mean of its divisors is an integer number (7200676).

Almost surely, 2^47318636 is an apocalyptic number.

47318636 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

47318636 is a deficient number, since it is larger than the sum of its proper divisors (39089476).

47318636 is a wasteful number, since it uses less digits than its factorization.

47318636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514360 (or 514358 counting only the distinct ones).

The product of its digits is 72576, while the sum is 38.

The square root of 47318636 is about 6878.8542650648. The cubic root of 47318636 is about 361.6963052249.

The spelling of 47318636 in words is "forty-seven million, three hundred eighteen thousand, six hundred thirty-six".