428571379 has 2 divisors, whose sum is σ = 428571380. Its totient is φ = 428571378.

The previous prime is 428571349. The next prime is 428571389. The reversal of 428571379 is 973175824.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 428571379 - 2¹¹ = 428569331 is a prime.

It is not a weakly prime, because it can be changed into another prime (428571349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214285689 + 214285690.

It is an arithmetic number, because the mean of its divisors is an integer number (214285690).

Almost surely, 2^428571379 is an apocalyptic number.

428571379 is a deficient number, since it is larger than the sum of its proper divisors (1).

428571379 is an equidigital number, since it uses as much as digits as its factorization.

428571379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 423360, while the sum is 46.

The square root of 428571379 is about 20701.9655830068. The cubic root of 428571379 is about 753.9474120603.

The spelling of 428571379 in words is "four hundred twenty-eight million, five hundred seventy-one thousand, three hundred seventy-nine".