658431379 has 2 divisors, whose sum is σ = 658431380. Its totient is φ = 658431378.

The previous prime is 658431359. The next prime is 658431383. The reversal of 658431379 is 973134856.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 658431379 - 2⁷ = 658431251 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (658431359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 329215689 + 329215690.

It is an arithmetic number, because the mean of its divisors is an integer number (329215690).

Almost surely, 2^658431379 is an apocalyptic number.

658431379 is a deficient number, since it is larger than the sum of its proper divisors (1).

658431379 is an equidigital number, since it uses as much as digits as its factorization.

658431379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 46.

The square root of 658431379 is about 25659.9177512322. The cubic root of 658431379 is about 869.9684574815.

The spelling of 658431379 in words is "six hundred fifty-eight million, four hundred thirty-one thousand, three hundred seventy-nine".