404667347 has 4 divisors (see below), whose sum is σ = 462476976. Its totient is φ = 346857720.

The previous prime is 404667331. The next prime is 404667379. The reversal of 404667347 is 743766404.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 404667347 - 2⁴ = 404667331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404667047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28904804 + ... + 28904817.

It is an arithmetic number, because the mean of its divisors is an integer number (115619244).

Almost surely, 2^404667347 is an apocalyptic number.

404667347 is a deficient number, since it is larger than the sum of its proper divisors (57809629).

404667347 is an equidigital number, since it uses as much as digits as its factorization.

404667347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57809628.

The product of its (nonzero) digits is 338688, while the sum is 41.

The square root of 404667347 is about 20116.3452694569. The cubic root of 404667347 is about 739.6610006789.

The spelling of 404667347 in words is "four hundred four million, six hundred sixty-seven thousand, three hundred forty-seven".