34725409 has 4 divisors (see below), whose sum is σ = 35294740. Its totient is φ = 34156080.

The previous prime is 34725403. The next prime is 34725413. The reversal of 34725409 is 90452743.

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 327184 + 34398225 = 572^2 + 5865^2 .

It is a cyclic number.

It is not a de Polignac number, because 34725409 - 2¹¹ = 34723361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34725403) 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, 284574 + ... + 284695.

It is an arithmetic number, because the mean of its divisors is an integer number (8823685).

Almost surely, 2^34725409 is an apocalyptic number.

It is an amenable number.

34725409 is a deficient number, since it is larger than the sum of its proper divisors (569331).

34725409 is an equidigital number, since it uses as much as digits as its factorization.

34725409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569330.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 34725409 is about 5892.8269107450. The cubic root of 34725409 is about 326.2489504426.

The spelling of 34725409 in words is "thirty-four million, seven hundred twenty-five thousand, four hundred nine".