428886707 has 2 divisors, whose sum is σ = 428886708. Its totient is φ = 428886706.

The previous prime is 428886701. The next prime is 428886739. The reversal of 428886707 is 707688824.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-428886707 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (428886701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214443353 + 214443354.

It is an arithmetic number, because the mean of its divisors is an integer number (214443354).

Almost surely, 2^428886707 is an apocalyptic number.

428886707 is a deficient number, since it is larger than the sum of its proper divisors (1).

428886707 is an equidigital number, since it uses as much as digits as its factorization.

428886707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1204224, while the sum is 50.

The square root of 428886707 is about 20709.5800778287. The cubic root of 428886707 is about 754.1322762065.

The spelling of 428886707 in words is "four hundred twenty-eight million, eight hundred eighty-six thousand, seven hundred seven".