47986487 has 8 divisors (see below), whose sum is σ = 50534880. Its totient is φ = 45476640.

The previous prime is 47986469. The next prime is 47986501. The reversal of 47986487 is 78468974.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 47986487 - 2⁶ = 47986423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47986787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7064 + ... + 12077.

It is an arithmetic number, because the mean of its divisors is an integer number (6316860).

Almost surely, 2^47986487 is an apocalyptic number.

47986487 is a deficient number, since it is larger than the sum of its proper divisors (2548393).

47986487 is a wasteful number, since it uses less digits than its factorization.

47986487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19273.

The product of its digits is 2709504, while the sum is 53.

The square root of 47986487 is about 6927.2279448564. The cubic root of 47986487 is about 363.3900115454.

The spelling of 47986487 in words is "forty-seven million, nine hundred eighty-six thousand, four hundred eighty-seven".