9428071693 has 2 divisors, whose sum is σ = 9428071694. Its totient is φ = 9428071692.

The previous prime is 9428071649. The next prime is 9428071721. The reversal of 9428071693 is 3961708249.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8585504964 + 842566729 = 92658^2 + 29027^2 .

It is an emirp because it is prime and its reverse (3961708249) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9428071693 - 2⁹ = 9428071181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9428071613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4714035846 + 4714035847.

It is an arithmetic number, because the mean of its divisors is an integer number (4714035847).

Almost surely, 2^9428071693 is an apocalyptic number.

It is an amenable number.

9428071693 is a deficient number, since it is larger than the sum of its proper divisors (1).

9428071693 is an equidigital number, since it uses as much as digits as its factorization.

9428071693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 653184, while the sum is 49.

The square root of 9428071693 is about 97098.2579297899. The cubic root of 9428071693 is about 2112.5530586116.

The spelling of 9428071693 in words is "nine billion, four hundred twenty-eight million, seventy-one thousand, six hundred ninety-three".