47240587 has 4 divisors (see below), whose sum is σ = 47266960. Its totient is φ = 47214216.

The previous prime is 47240573. The next prime is 47240647. The reversal of 47240587 is 78504274.

47240587 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47240587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47240537) 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 3 ways as a sum of consecutive naturals, for example, 10287 + ... + 14152.

It is an arithmetic number, because the mean of its divisors is an integer number (11816740).

Almost surely, 2^47240587 is an apocalyptic number.

47240587 is a deficient number, since it is larger than the sum of its proper divisors (26373).

47240587 is a wasteful number, since it uses less digits than its factorization.

47240587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26372.

The product of its (nonzero) digits is 62720, while the sum is 37.

The square root of 47240587 is about 6873.1788133294. The cubic root of 47240587 is about 361.4973309746.

The spelling of 47240587 in words is "forty-seven million, two hundred forty thousand, five hundred eighty-seven".