2829409 has 4 divisors (see below), whose sum is σ = 3086640. Its totient is φ = 2572180.

The previous prime is 2829403. The next prime is 2829413. The reversal of 2829409 is 9049282.

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.

It is a cyclic number.

It is not a de Polignac number, because 2829409 - 2⁹ = 2828897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2829403) 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, 128599 + ... + 128620.

It is an arithmetic number, because the mean of its divisors is an integer number (771660).

2^2829409 is an apocalyptic number.

It is an amenable number.

2829409 is a deficient number, since it is larger than the sum of its proper divisors (257231).

2829409 is a wasteful number, since it uses less digits than its factorization.

2829409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257230.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 2829409 is about 1682.0847184372. The cubic root of 2829409 is about 141.4377189316.

Subtracting from 2829409 its product of nonzero digits (10368), we obtain a square (2819041 = 1679²).

The spelling of 2829409 in words is "two million, eight hundred twenty-nine thousand, four hundred nine".