3947029 has 4 divisors (see below), whose sum is σ = 4043340. Its totient is φ = 3850720.

The previous prime is 3947023. The next prime is 3947051. The reversal of 3947029 is 9207493.

3947029 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2244004 + 1703025 = 1498^2 + 1305^2 .

It is not a de Polignac number, because 3947029 - 2⁵ = 3946997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3946985 and 3947003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3947023) 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 3 ways as a sum of consecutive naturals, for example, 48094 + ... + 48175.

It is an arithmetic number, because the mean of its divisors is an integer number (1010835).

Almost surely, 2^3947029 is an apocalyptic number.

It is an amenable number.

3947029 is a deficient number, since it is larger than the sum of its proper divisors (96311).

3947029 is an equidigital number, since it uses as much as digits as its factorization.

3947029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96310.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 3947029 is about 1986.7131146696. The cubic root of 3947029 is about 158.0362705814.

The spelling of 3947029 in words is "three million, nine hundred forty-seven thousand, twenty-nine".