47019816 has 48 divisors (see below), whose sum is σ = 127713300. Its totient is φ = 15628032.

The previous prime is 47019803. The next prime is 47019853. The reversal of 47019816 is 61891074.

It can be written as a sum of positive squares in 2 ways, for example, as 46867716 + 152100 = 6846^2 + 390^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32190 + ... + 33618.

Almost surely, 2^47019816 is an apocalyptic number.

It is an amenable number.

47019816 is an abundant number, since it is smaller than the sum of its proper divisors (80693484).

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

47019816 is a wasteful number, since it uses less digits than its factorization.

47019816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1898 (or 1891 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 47019816 is about 6857.0996784355. The cubic root of 47019816 is about 360.9333189711.

The spelling of 47019816 in words is "forty-seven million, nineteen thousand, eight hundred sixteen".