674435409 has 4 divisors (see below), whose sum is σ = 899247216. Its totient is φ = 449623604.

The previous prime is 674435401. The next prime is 674435413. The reversal of 674435409 is 904534476.

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 674435409 - 2³ = 674435401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (674435401) 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, 112405899 + ... + 112405904.

It is an arithmetic number, because the mean of its divisors is an integer number (224811804).

Almost surely, 2^674435409 is an apocalyptic number.

It is an amenable number.

674435409 is a deficient number, since it is larger than the sum of its proper divisors (224811807).

674435409 is a wasteful number, since it uses less digits than its factorization.

674435409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224811806.

The product of its (nonzero) digits is 362880, while the sum is 42.

The square root of 674435409 is about 25969.8942816485. The cubic root of 674435409 is about 876.9606793018.

The spelling of 674435409 in words is "six hundred seventy-four million, four hundred thirty-five thousand, four hundred nine".