428107679 has 2 divisors, whose sum is σ = 428107680. Its totient is φ = 428107678.

The previous prime is 428107661. The next prime is 428107681. The reversal of 428107679 is 976701824.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 428107679 - 2⁸ = 428107423 is a prime.

Together with 428107681, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (428107079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214053839 + 214053840.

It is an arithmetic number, because the mean of its divisors is an integer number (214053840).

Almost surely, 2^428107679 is an apocalyptic number.

428107679 is a deficient number, since it is larger than the sum of its proper divisors (1).

428107679 is an equidigital number, since it uses as much as digits as its factorization.

428107679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 428107679 is about 20690.7631323738. The cubic root of 428107679 is about 753.6753985793.

The spelling of 428107679 in words is "four hundred twenty-eight million, one hundred seven thousand, six hundred seventy-nine".