404311307 has 2 divisors, whose sum is σ = 404311308. Its totient is φ = 404311306.

The previous prime is 404311217. The next prime is 404311309. The reversal of 404311307 is 703113404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 404311307 - 2²⁸ = 135875851 is a prime.

Together with 404311309, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (404311309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202155653 + 202155654.

It is an arithmetic number, because the mean of its divisors is an integer number (202155654).

Almost surely, 2^404311307 is an apocalyptic number.

404311307 is a deficient number, since it is larger than the sum of its proper divisors (1).

404311307 is an equidigital number, since it uses as much as digits as its factorization.

404311307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 404311307 is about 20107.4938020630. The cubic root of 404311307 is about 739.4440107844. Note that the first 3 decimals are identical.

The spelling of 404311307 in words is "four hundred four million, three hundred eleven thousand, three hundred seven".