47303720 has 16 divisors (see below), whose sum is σ = 106433460. Its totient is φ = 18921472.

The previous prime is 47303717. The next prime is 47303747. The reversal of 47303720 is 2730374.

It can be written as a sum of positive squares in 2 ways, for example, as 43375396 + 3928324 = 6586^2 + 1982^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 47303720.

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, 591257 + ... + 591336.

Almost surely, 2^47303720 is an apocalyptic number.

47303720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47303720 is an abundant number, since it is smaller than the sum of its proper divisors (59129740).

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

47303720 is a wasteful number, since it uses less digits than its factorization.

47303720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1182604 (or 1182600 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 26.

The square root of 47303720 is about 6877.7699874305. The cubic root of 47303720 is about 361.6582960349.

The spelling of 47303720 in words is "forty-seven million, three hundred three thousand, seven hundred twenty".