404671 has 2 divisors, whose sum is σ = 404672. Its totient is φ = 404670.

The previous prime is 404597. The next prime is 404693. The reversal of 404671 is 176404.

It is an a-pointer prime, because the next prime (404693) can be obtained adding 404671 to its sum of digits (22).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 404671 - 2¹³ = 396479 is a prime.

It is a plaindrome in base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202335 + 202336.

It is an arithmetic number, because the mean of its divisors is an integer number (202336).

2⁴⁰⁴⁶⁷¹ is an apocalyptic number.

404671 is a deficient number, since it is larger than the sum of its proper divisors (1).

404671 is an equidigital number, since it uses as much as digits as its factorization.

404671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 404671 is about 636.1375637392. The cubic root of 404671 is about 73.9663226354.

The spelling of 404671 in words is "four hundred four thousand, six hundred seventy-one".