398827295423 has 2 divisors, whose sum is σ = 398827295424. Its totient is φ = 398827295422.

The previous prime is 398827295413. The next prime is 398827295497. The reversal of 398827295423 is 324592728893.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 398827295423 - 2²² = 398823101119 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (398827295413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199413647711 + 199413647712.

It is an arithmetic number, because the mean of its divisors is an integer number (199413647712).

Almost surely, 2^398827295423 is an apocalyptic number.

398827295423 is a deficient number, since it is larger than the sum of its proper divisors (1).

398827295423 is an equidigital number, since it uses as much as digits as its factorization.

398827295423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52254720, while the sum is 62.

The spelling of 398827295423 in words is "three hundred ninety-eight billion, eight hundred twenty-seven million, two hundred ninety-five thousand, four hundred twenty-three".