8402997773 has 2 divisors, whose sum is σ = 8402997774. Its totient is φ = 8402997772.

The previous prime is 8402997749. The next prime is 8402997797. The reversal of 8402997773 is 3777992048.

It is a balanced prime because it is at equal distance from previous prime (8402997749) and next prime (8402997797).

It can be written as a sum of positive squares in only one way, i.e., 4869527524 + 3533470249 = 69782^2 + 59443^2 .

It is a cyclic number.

It is not a de Polignac number, because 8402997773 - 2¹⁸ = 8402735629 is a prime.

It is a super-2 number, since 2×8402997773² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8402997173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4201498886 + 4201498887.

It is an arithmetic number, because the mean of its divisors is an integer number (4201498887).

Almost surely, 2^8402997773 is an apocalyptic number.

It is an amenable number.

8402997773 is a deficient number, since it is larger than the sum of its proper divisors (1).

8402997773 is an equidigital number, since it uses as much as digits as its factorization.

8402997773 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5334336, while the sum is 56.

The square root of 8402997773 is about 91667.8666327520. The cubic root of 8402997773 is about 2033.0345043573.

The spelling of 8402997773 in words is "eight billion, four hundred two million, nine hundred ninety-seven thousand, seven hundred seventy-three".