47287761 has 16 divisors (see below), whose sum is σ = 66898944. Its totient is φ = 29608704.

The previous prime is 47287759. The next prime is 47287783. The reversal of 47287761 is 16778274.

47287761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 47287761 - 2¹ = 47287759 is a prime.

It is a super-2 number, since 2×47287761² = 4472264680786242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47286761) by changing a digit.

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, 42960 + ... + 44046.

It is an arithmetic number, because the mean of its divisors is an integer number (4181184).

Almost surely, 2^47287761 is an apocalyptic number.

It is an amenable number.

47287761 is a deficient number, since it is larger than the sum of its proper divisors (19611183).

47287761 is a wasteful number, since it uses less digits than its factorization.

47287761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1960.

The product of its digits is 131712, while the sum is 42.

The square root of 47287761 is about 6876.6097024624. The cubic root of 47287761 is about 361.6176202069.

The spelling of 47287761 in words is "forty-seven million, two hundred eighty-seven thousand, seven hundred sixty-one".