47681616 has 20 divisors (see below), whose sum is σ = 123177632. Its totient is φ = 15893856.

The previous prime is 47681603. The next prime is 47681633. The reversal of 47681616 is 61618674.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 496636 + ... + 496731.

Almost surely, 2^47681616 is an apocalyptic number.

It is an amenable number.

47681616 is an abundant number, since it is smaller than the sum of its proper divisors (75496016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47681616 is a wasteful number, since it uses less digits than its factorization.

47681616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993378 (or 993372 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 47681616 is about 6905.1876151195. The cubic root of 47681616 is about 362.6188046580.

The spelling of 47681616 in words is "forty-seven million, six hundred eighty-one thousand, six hundred sixteen".