47459905 has 4 divisors (see below), whose sum is σ = 56951892. Its totient is φ = 37967920.

The previous prime is 47459899. The next prime is 47459911. The reversal of 47459905 is 50995474.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50995474 = 2 ⋅25497737.

It is an interprime number because it is at equal distance from previous prime (47459899) and next prime (47459911).

It can be written as a sum of positive squares in 2 ways, for example, as 34586161 + 12873744 = 5881^2 + 3588^2 .

It is a de Polignac number, because none of the positive numbers 2^k-47459905 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 4745986 + ... + 4745995.

It is an arithmetic number, because the mean of its divisors is an integer number (14237973).

Almost surely, 2^47459905 is an apocalyptic number.

It is an amenable number.

47459905 is a deficient number, since it is larger than the sum of its proper divisors (9491987).

47459905 is an equidigital number, since it uses as much as digits as its factorization.

47459905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9491986.

The product of its (nonzero) digits is 226800, while the sum is 43.

The square root of 47459905 is about 6889.1149649284. The cubic root of 47459905 is about 362.0558937127.

The spelling of 47459905 in words is "forty-seven million, four hundred fifty-nine thousand, nine hundred five".