47813668 has 12 divisors (see below), whose sum is σ = 95627392. Its totient is φ = 20491560.

The previous prime is 47813651. The next prime is 47813669. The reversal of 47813668 is 86631874.

47813668 is an admirable number.

It is a super-2 number, since 2×47813668² = 4572293695228448, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47813669) by changing a digit.

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, 853788 + ... + 853843.

Almost surely, 2^47813668 is an apocalyptic number.

It is an amenable number.

47813668 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

47813668 is a wasteful number, since it uses less digits than its factorization.

47813668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1707642 (or 1707640 counting only the distinct ones).

The product of its digits is 193536, while the sum is 43.

The square root of 47813668 is about 6914.7428007121. The cubic root of 47813668 is about 362.9532480321.

The spelling of 47813668 in words is "forty-seven million, eight hundred thirteen thousand, six hundred sixty-eight".