47640675 has 18 divisors (see below), whose sum is σ = 78864868. Its totient is φ = 25376480.

The previous prime is 47640673. The next prime is 47640701. The reversal of 47640675 is 57604674.

It is not a de Polignac number, because 47640675 - 2¹ = 47640673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47640673) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 59377 + ... + 60173.

Almost surely, 2^47640675 is an apocalyptic number.

47640675 is a deficient number, since it is larger than the sum of its proper divisors (31224193).

47640675 is an frugal number, since it uses more digits than its factorization.

47640675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1607 (or 805 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 39.

The square root of 47640675 is about 6902.2224681620. Note that the first 3 decimals coincide. The cubic root of 47640675 is about 362.5149894713.

The spelling of 47640675 in words is "forty-seven million, six hundred forty thousand, six hundred seventy-five".