428913379 has 2 divisors, whose sum is σ = 428913380. Its totient is φ = 428913378.

The previous prime is 428913377. The next prime is 428913389. The reversal of 428913379 is 973319824.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 428913379 - 2¹ = 428913377 is a prime.

Together with 428913377, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (428913377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214456689 + 214456690.

It is an arithmetic number, because the mean of its divisors is an integer number (214456690).

Almost surely, 2^428913379 is an apocalyptic number.

428913379 is a deficient number, since it is larger than the sum of its proper divisors (1).

428913379 is an equidigital number, since it uses as much as digits as its factorization.

428913379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 46.

The square root of 428913379 is about 20710.2240209999. The cubic root of 428913379 is about 754.1479087724.

The spelling of 428913379 in words is "four hundred twenty-eight million, nine hundred thirteen thousand, three hundred seventy-nine".