47685549 has 4 divisors (see below), whose sum is σ = 63580736. Its totient is φ = 31790364.

The previous prime is 47685529. The next prime is 47685559. The reversal of 47685549 is 94558674.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 47685549 - 2⁸ = 47685293 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47685498 and 47685507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47685529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7947589 + ... + 7947594.

It is an arithmetic number, because the mean of its divisors is an integer number (15895184).

Almost surely, 2^47685549 is an apocalyptic number.

It is an amenable number.

47685549 is a deficient number, since it is larger than the sum of its proper divisors (15895187).

47685549 is a wasteful number, since it uses less digits than its factorization.

47685549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15895186.

The product of its digits is 1209600, while the sum is 48.

The square root of 47685549 is about 6905.4723951371. The cubic root of 47685549 is about 362.6287745420.

The spelling of 47685549 in words is "forty-seven million, six hundred eighty-five thousand, five hundred forty-nine".