47499865 has 12 divisors (see below), whose sum is σ = 66306276. Its totient is φ = 32571168.

The previous prime is 47499863. The next prime is 47499869. The reversal of 47499865 is 56899474.

It is a happy number.

47499865 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 34904464 + 12595401 = 5908^2 + 3549^2 .

It is not a de Polignac number, because 47499865 - 2¹ = 47499863 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47499863) 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 11 ways as a sum of consecutive naturals, for example, 96694 + ... + 97183.

It is an arithmetic number, because the mean of its divisors is an integer number (5525523).

Almost surely, 2^47499865 is an apocalyptic number.

It is an amenable number.

47499865 is a deficient number, since it is larger than the sum of its proper divisors (18806411).

47499865 is a wasteful number, since it uses less digits than its factorization.

47499865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193896 (or 193889 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 52.

The square root of 47499865 is about 6892.0145821088. The cubic root of 47499865 is about 362.1574790749.

The spelling of 47499865 in words is "forty-seven million, four hundred ninety-nine thousand, eight hundred sixty-five".