47456617 has 4 divisors (see below), whose sum is σ = 51107140. Its totient is φ = 43806096.

The previous prime is 47456611. The next prime is 47456641. The reversal of 47456617 is 71665474.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71665474 = 2 ⋅35832737.

It can be written as a sum of positive squares in 2 ways, for example, as 5089536 + 42367081 = 2256^2 + 6509^2 .

It is a cyclic number.

It is not a de Polignac number, because 47456617 - 2³ = 47456609 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47456617.

It is not an unprimeable number, because it can be changed into a prime (47456611) by changing a digit.

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, 1825242 + ... + 1825267.

It is an arithmetic number, because the mean of its divisors is an integer number (12776785).

Almost surely, 2^47456617 is an apocalyptic number.

It is an amenable number.

47456617 is a deficient number, since it is larger than the sum of its proper divisors (3650523).

47456617 is a wasteful number, since it uses less digits than its factorization.

47456617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3650522.

The product of its digits is 141120, while the sum is 40.

The square root of 47456617 is about 6888.8763234652. The cubic root of 47456617 is about 362.0475324986.

The spelling of 47456617 in words is "forty-seven million, four hundred fifty-six thousand, six hundred seventeen".