47783886 has 8 divisors (see below), whose sum is σ = 95567784. Its totient is φ = 15927960.

The previous prime is 47783843. The next prime is 47783887. The reversal of 47783886 is 68838774.

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

47783886 is an admirable number.

It is a super-2 number, since 2×47783886² = 4566599522521992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47783887) 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, 3981985 + ... + 3981996.

It is an arithmetic number, because the mean of its divisors is an integer number (11945973).

Almost surely, 2^47783886 is an apocalyptic number.

47783886 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

47783886 is a wasteful number, since it uses less digits than its factorization.

47783886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7963986.

The product of its digits is 1806336, while the sum is 51.

The square root of 47783886 is about 6912.5889506031. The cubic root of 47783886 is about 362.8778740565.

The spelling of 47783886 in words is "forty-seven million, seven hundred eighty-three thousand, eight hundred eighty-six".