404364671 has 2 divisors, whose sum is σ = 404364672. Its totient is φ = 404364670.

The previous prime is 404364619. The next prime is 404364757. The reversal of 404364671 is 176463404.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404364671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404364871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202182335 + 202182336.

It is an arithmetic number, because the mean of its divisors is an integer number (202182336).

Almost surely, 2^404364671 is an apocalyptic number.

404364671 is a deficient number, since it is larger than the sum of its proper divisors (1).

404364671 is an equidigital number, since it uses as much as digits as its factorization.

404364671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 404364671 is about 20108.8207262385. The cubic root of 404364671 is about 739.4765417851.

The spelling of 404364671 in words is "four hundred four million, three hundred sixty-four thousand, six hundred seventy-one".