1428696173 has 2 divisors, whose sum is σ = 1428696174. Its totient is φ = 1428696172.

The previous prime is 1428696121. The next prime is 1428696187. The reversal of 1428696173 is 3716968241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1406775049 + 21921124 = 37507^2 + 4682^2 .

It is a cyclic number.

It is not a de Polignac number, because 1428696173 - 2⁶ = 1428696109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1428690173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 714348086 + 714348087.

It is an arithmetic number, because the mean of its divisors is an integer number (714348087).

Almost surely, 2^1428696173 is an apocalyptic number.

It is an amenable number.

1428696173 is a deficient number, since it is larger than the sum of its proper divisors (1).

1428696173 is an equidigital number, since it uses as much as digits as its factorization.

1428696173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 435456, while the sum is 47.

The square root of 1428696173 is about 37798.0974785769. The cubic root of 1428696173 is about 1126.2806612241.

The spelling of 1428696173 in words is "one billion, four hundred twenty-eight million, six hundred ninety-six thousand, one hundred seventy-three".