47287730 has 16 divisors (see below), whose sum is σ = 97277760. Its totient is φ = 16212912.

The previous prime is 47287703. The next prime is 47287753. The reversal of 47287730 is 3778274.

47287730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×47287730² = 4472258817105800, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 337700 + ... + 337839.

It is an arithmetic number, because the mean of its divisors is an integer number (6079860).

Almost surely, 2^47287730 is an apocalyptic number.

47287730 is an abundant number, since it is smaller than the sum of its proper divisors (49990030).

47287730 is a wasteful number, since it uses less digits than its factorization.

47287730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675553.

The product of its (nonzero) digits is 65856, while the sum is 38.

The square root of 47287730 is about 6876.6074484443. The cubic root of 47287730 is about 361.6175411861.

The spelling of 47287730 in words is "forty-seven million, two hundred eighty-seven thousand, seven hundred thirty".