3428629 has 4 divisors (see below), whose sum is σ = 3436000. Its totient is φ = 3421260.

The previous prime is 3428617. The next prime is 3428651. The reversal of 3428629 is 9268243.

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: 9268243 = 313 ⋅29611.

It is a cyclic number.

It is not a de Polignac number, because 3428629 - 2⁵ = 3428597 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3428594 and 3428603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3428609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2937 + ... + 3934.

It is an arithmetic number, because the mean of its divisors is an integer number (859000).

Almost surely, 2^3428629 is an apocalyptic number.

It is an amenable number.

3428629 is a deficient number, since it is larger than the sum of its proper divisors (7371).

3428629 is an equidigital number, since it uses as much as digits as its factorization.

3428629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7370.

The product of its digits is 20736, while the sum is 34.

The square root of 3428629 is about 1851.6557455424. The cubic root of 3428629 is about 150.7903322234.

The spelling of 3428629 in words is "three million, four hundred twenty-eight thousand, six hundred twenty-nine".