2925409 has 4 divisors (see below), whose sum is σ = 2931904. Its totient is φ = 2918916.

The previous prime is 2925407. The next prime is 2925427. The reversal of 2925409 is 9045292.

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 2925409 - 2¹ = 2925407 is a prime.

It is a Duffinian number.

2925409 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2925401) 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, 2517 + ... + 3490.

It is an arithmetic number, because the mean of its divisors is an integer number (732976).

2^2925409 is an apocalyptic number.

It is an amenable number.

2925409 is a deficient number, since it is larger than the sum of its proper divisors (6495).

2925409 is an equidigital number, since it uses as much as digits as its factorization.

2925409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6494.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 2925409 is about 1710.3827057124. The cubic root of 2925409 is about 143.0195907761.

The spelling of 2925409 in words is "two million, nine hundred twenty-five thousand, four hundred nine".