405314827 has 2 divisors, whose sum is σ = 405314828. Its totient is φ = 405314826.

The previous prime is 405314779. The next prime is 405314839. The reversal of 405314827 is 728413504.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-405314827 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 405314792 and 405314801.

It is not a weakly prime, because it can be changed into another prime (405314857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202657413 + 202657414.

It is an arithmetic number, because the mean of its divisors is an integer number (202657414).

Almost surely, 2^405314827 is an apocalyptic number.

405314827 is a deficient number, since it is larger than the sum of its proper divisors (1).

405314827 is an equidigital number, since it uses as much as digits as its factorization.

405314827 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 405314827 is about 20132.4322176929. The cubic root of 405314827 is about 740.0552837928.

The spelling of 405314827 in words is "four hundred five million, three hundred fourteen thousand, eight hundred twenty-seven".