404673671 has 2 divisors, whose sum is σ = 404673672. Its totient is φ = 404673670.

The previous prime is 404673617. The next prime is 404673673. The reversal of 404673671 is 176376404.

Together with previous prime (404673617) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 404673671 - 2²² = 400479367 is a prime.

Together with 404673673, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404673673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202336835 + 202336836.

It is an arithmetic number, because the mean of its divisors is an integer number (202336836).

Almost surely, 2^404673671 is an apocalyptic number.

404673671 is a deficient number, since it is larger than the sum of its proper divisors (1).

404673671 is an equidigital number, since it uses as much as digits as its factorization.

404673671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 404673671 is about 20116.5024544527. The cubic root of 404673671 is about 739.6648537135.

The spelling of 404673671 in words is "four hundred four million, six hundred seventy-three thousand, six hundred seventy-one".