47877816 has 64 divisors (see below), whose sum is σ = 137306880. Its totient is φ = 13628160.

The previous prime is 47877787. The next prime is 47877821. The reversal of 47877816 is 61877874.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87255 + ... + 87801.

It is an arithmetic number, because the mean of its divisors is an integer number (2145420).

Almost surely, 2^47877816 is an apocalyptic number.

It is an amenable number.

47877816 is an abundant number, since it is smaller than the sum of its proper divisors (89429064).

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

47877816 is a wasteful number, since it uses less digits than its factorization.

47877816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084 (or 1080 counting only the distinct ones).

The product of its digits is 526848, while the sum is 48.

The square root of 47877816 is about 6919.3797409883. The cubic root of 47877816 is about 363.1154911832.

The spelling of 47877816 in words is "forty-seven million, eight hundred seventy-seven thousand, eight hundred sixteen".