4047813 has 60 divisors (see below), whose sum is σ = 7724640. Its totient is φ = 2067120.

The previous prime is 4047811. The next prime is 4047821. The reversal of 4047813 is 3187404.

It is not a de Polignac number, because 4047813 - 2¹ = 4047811 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

4047813 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4047811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 68578 + ... + 68636.

It is an arithmetic number, because the mean of its divisors is an integer number (128744).

Almost surely, 2^4047813 is an apocalyptic number.

It is an amenable number.

4047813 is a deficient number, since it is larger than the sum of its proper divisors (3676827).

4047813 is a wasteful number, since it uses less digits than its factorization.

4047813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100 (or 80 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 4047813 is about 2011.9177418573. The cubic root of 4047813 is about 159.3700884300.

The spelling of 4047813 in words is "four million, forty-seven thousand, eight hundred thirteen".