47806887 has 4 divisors (see below), whose sum is σ = 63742520. Its totient is φ = 31871256.

The previous prime is 47806879. The next prime is 47806919. The reversal of 47806887 is 78860874.

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

It is not a de Polignac number, because 47806887 - 2³ = 47806879 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 (47806817) 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, 7967812 + ... + 7967817.

It is an arithmetic number, because the mean of its divisors is an integer number (15935630).

Almost surely, 2^47806887 is an apocalyptic number.

47806887 is a deficient number, since it is larger than the sum of its proper divisors (15935633).

47806887 is a wasteful number, since it uses less digits than its factorization.

47806887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15935632.

The product of its (nonzero) digits is 602112, while the sum is 48.

The square root of 47806887 is about 6914.2524541703. The cubic root of 47806887 is about 362.9360890450.

The spelling of 47806887 in words is "forty-seven million, eight hundred six thousand, eight hundred eighty-seven".