47660845 has 8 divisors (see below), whose sum is σ = 57389976. Its totient is φ = 37997376.

The previous prime is 47660827. The next prime is 47660869. The reversal of 47660845 is 54806674.

It can be written as a sum of positive squares in 4 ways, for example, as 10426441 + 37234404 = 3229^2 + 6102^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47660845 is a prime.

It is a super-2 number, since 2×47660845² = 4543112292228050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47660798 and 47660807.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14802 + ... + 17731.

It is an arithmetic number, because the mean of its divisors is an integer number (7173747).

Almost surely, 2^47660845 is an apocalyptic number.

It is an amenable number.

47660845 is a deficient number, since it is larger than the sum of its proper divisors (9729131).

47660845 is a wasteful number, since it uses less digits than its factorization.

47660845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32831.

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 47660845 is about 6903.6834371225. The cubic root of 47660845 is about 362.5661425086.

The spelling of 47660845 in words is "forty-seven million, six hundred sixty thousand, eight hundred forty-five".