47485917 has 12 divisors (see below), whose sum is σ = 68878524. Its totient is φ = 31524480.

The previous prime is 47485901. The next prime is 47485927. The reversal of 47485917 is 71958474.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 35748441 + 11737476 = 5979^2 + 3426^2 .

It is not a de Polignac number, because 47485917 - 2⁴ = 47485901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47485927) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8778 + ... + 13115.

It is an arithmetic number, because the mean of its divisors is an integer number (5739877).

Almost surely, 2^47485917 is an apocalyptic number.

It is an amenable number.

47485917 is a deficient number, since it is larger than the sum of its proper divisors (21392607).

47485917 is a wasteful number, since it uses less digits than its factorization.

47485917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22140 (or 22137 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The square root of 47485917 is about 6891.0026121022. The cubic root of 47485917 is about 362.1220272756.

The spelling of 47485917 in words is "forty-seven million, four hundred eighty-five thousand, nine hundred seventeen".