47663720 has 64 divisors (see below), whose sum is σ = 117210240. Its totient is φ = 17337600.

The previous prime is 47663701. The next prime is 47663731. The reversal of 47663720 is 2736674.

47663720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 36275 + ... + 37565.

It is an arithmetic number, because the mean of its divisors is an integer number (1831410).

Almost surely, 2^47663720 is an apocalyptic number.

47663720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47663720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58605120).

47663720 is an abundant number, since it is smaller than the sum of its proper divisors (69546520).

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

47663720 is a wasteful number, since it uses less digits than its factorization.

47663720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1386 (or 1382 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 35.

The square root of 47663720 is about 6903.8916561603. The cubic root of 47663720 is about 362.5734326067.

The spelling of 47663720 in words is "forty-seven million, six hundred sixty-three thousand, seven hundred twenty".