47487609 has 24 divisors (see below), whose sum is σ = 75595520. Its totient is φ = 28540512.

The previous prime is 47487599. The next prime is 47487653. The reversal of 47487609 is 90678474.

It is not a de Polignac number, because 47487609 - 2⁷ = 47487481 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47487659) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 312 + ... + 9750.

Almost surely, 2^47487609 is an apocalyptic number.

It is an amenable number.

47487609 is a deficient number, since it is larger than the sum of its proper divisors (28107911).

47487609 is a wasteful number, since it uses less digits than its factorization.

47487609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9501 (or 9498 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 47487609 is about 6891.1253797910. The cubic root of 47487609 is about 362.1263282223.

The spelling of 47487609 in words is "forty-seven million, four hundred eighty-seven thousand, six hundred nine".