1428697999 has 2 divisors, whose sum is σ = 1428698000. Its totient is φ = 1428697998.

The previous prime is 1428697993. The next prime is 1428698059. The reversal of 1428697999 is 9997968241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1428697999 - 2⁵ = 1428697967 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1428697999.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1428697993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 714348999 + 714349000.

It is an arithmetic number, because the mean of its divisors is an integer number (714349000).

Almost surely, 2^1428697999 is an apocalyptic number.

1428697999 is a deficient number, since it is larger than the sum of its proper divisors (1).

1428697999 is an equidigital number, since it uses as much as digits as its factorization.

1428697999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17635968, while the sum is 64.

The square root of 1428697999 is about 37798.1216332241. The cubic root of 1428697999 is about 1126.2811410526.

The spelling of 1428697999 in words is "one billion, four hundred twenty-eight million, six hundred ninety-seven thousand, nine hundred ninety-nine".