47289865 has 16 divisors (see below), whose sum is σ = 67092480. Its totient is φ = 31308480.

The previous prime is 47289859. The next prime is 47289889. The reversal of 47289865 is 56898274.

It is not a de Polignac number, because 47289865 - 2¹³ = 47281673 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 22281 + ... + 24310.

It is an arithmetic number, because the mean of its divisors is an integer number (4193280).

Almost surely, 2^47289865 is an apocalyptic number.

It is an amenable number.

47289865 is a deficient number, since it is larger than the sum of its proper divisors (19802615).

47289865 is a wasteful number, since it uses less digits than its factorization.

47289865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46632.

The product of its digits is 967680, while the sum is 49.

The square root of 47289865 is about 6876.7626831235. The cubic root of 47289865 is about 361.6229833437.

The spelling of 47289865 in words is "forty-seven million, two hundred eighty-nine thousand, eight hundred sixty-five".