4791816 has 24 divisors (see below), whose sum is σ = 12978030. Its totient is φ = 1597248.

The previous prime is 4791811. The next prime is 4791817. The reversal of 4791816 is 6181974.

4791816 is a `hidden beast` number, since 479 + 181 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4639716 + 152100 = 2154^2 + 390^2 .

It is a tau number, because it is divible by the number of its divisors (24).

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

It is not an unprimeable number, because it can be changed into a prime (4791811) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33205 + ... + 33348.

Almost surely, 2^4791816 is an apocalyptic number.

It is an amenable number.

4791816 is an abundant number, since it is smaller than the sum of its proper divisors (8186214).

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

4791816 is a wasteful number, since it uses less digits than its factorization.

4791816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66565 (or 66558 counting only the distinct ones).

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

The square root of 4791816 is about 2189.0216992986. The cubic root of 4791816 is about 168.5906083428.

The spelling of 4791816 in words is "four million, seven hundred ninety-one thousand, eight hundred sixteen".