3820047 has 32 divisors (see below), whose sum is σ = 6635520. Its totient is φ = 1895520.

The previous prime is 3820043. The next prime is 3820051. The reversal of 3820047 is 7400283.

3820047 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3820043) and next prime (3820051).

It is not a de Polignac number, because 3820047 - 2² = 3820043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3819999 and 3820026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3820043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4954 + ... + 5672.

It is an arithmetic number, because the mean of its divisors is an integer number (207360).

Almost surely, 2^3820047 is an apocalyptic number.

3820047 is a deficient number, since it is larger than the sum of its proper divisors (2815473).

3820047 is a wasteful number, since it uses less digits than its factorization.

3820047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 3820047 is about 1954.4940521782. The cubic root of 3820047 is about 156.3230075887.

The spelling of 3820047 in words is "three million, eight hundred twenty thousand, forty-seven".