47608987 has 4 divisors (see below), whose sum is σ = 47778696. Its totient is φ = 47439280.

The previous prime is 47608961. The next prime is 47608997. The reversal of 47608987 is 78980674.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 47608987 - 2¹¹ = 47606939 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47608987.

It is not an unprimeable number, because it can be changed into a prime (47608907) 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, 84433 + ... + 84994.

It is an arithmetic number, because the mean of its divisors is an integer number (11944674).

Almost surely, 2^47608987 is an apocalyptic number.

47608987 is a deficient number, since it is larger than the sum of its proper divisors (169709).

47608987 is a wasteful number, since it uses less digits than its factorization.

47608987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169708.

The product of its (nonzero) digits is 677376, while the sum is 49.

The square root of 47608987 is about 6899.9265938124. The cubic root of 47608987 is about 362.4345965238.

The spelling of 47608987 in words is "forty-seven million, six hundred eight thousand, nine hundred eighty-seven".