3909029 has 4 divisors (see below), whose sum is σ = 3914784. Its totient is φ = 3903276.

The previous prime is 3909023. The next prime is 3909043. The reversal of 3909029 is 9209093.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9209093 = 881 ⋅10453.

It is a cyclic number.

It is not a de Polignac number, because 3909029 - 2¹² = 3904933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3908986 and 3909004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3909023) 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 3 ways as a sum of consecutive naturals, for example, 1697 + ... + 3270.

It is an arithmetic number, because the mean of its divisors is an integer number (978696).

Almost surely, 2^3909029 is an apocalyptic number.

It is an amenable number.

3909029 is a deficient number, since it is larger than the sum of its proper divisors (5755).

3909029 is an equidigital number, since it uses as much as digits as its factorization.

3909029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5754.

The product of its (nonzero) digits is 4374, while the sum is 32.

The square root of 3909029 is about 1977.1264501797. The cubic root of 3909029 is about 157.5274698034.

The spelling of 3909029 in words is "three million, nine hundred nine thousand, twenty-nine".