47516987 has 16 divisors (see below), whose sum is σ = 55538112. Its totient is φ = 39813120.

The previous prime is 47516983. The next prime is 47517013. The reversal of 47516987 is 78961574.

It is a cyclic number.

It is not a de Polignac number, because 47516987 - 2² = 47516983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47516981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109523 + ... + 109955.

It is an arithmetic number, because the mean of its divisors is an integer number (3471132).

Almost surely, 2^47516987 is an apocalyptic number.

47516987 is a deficient number, since it is larger than the sum of its proper divisors (8021125).

47516987 is a wasteful number, since it uses less digits than its factorization.

47516987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758.

The product of its digits is 423360, while the sum is 47.

The square root of 47516987 is about 6893.2566323908. The cubic root of 47516987 is about 362.2009887806.

The spelling of 47516987 in words is "forty-seven million, five hundred sixteen thousand, nine hundred eighty-seven".