47877786 has 24 divisors (see below), whose sum is σ = 113166144. Its totient is φ = 14508360.

The previous prime is 47877773. The next prime is 47877787. The reversal of 47877786 is 68777874.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (47877787) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 120706 + ... + 121101.

It is an arithmetic number, because the mean of its divisors is an integer number (4715256).

Almost surely, 2^47877786 is an apocalyptic number.

47877786 is an abundant number, since it is smaller than the sum of its proper divisors (65288358).

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

47877786 is a wasteful number, since it uses less digits than its factorization.

47877786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241826 (or 241823 counting only the distinct ones).

The product of its digits is 3687936, while the sum is 54.

The square root of 47877786 is about 6919.3775731636. The cubic root of 47877786 is about 363.1154153410.

The spelling of 47877786 in words is "forty-seven million, eight hundred seventy-seven thousand, seven hundred eighty-six".