8028697553 has 2 divisors, whose sum is σ = 8028697554. Its totient is φ = 8028697552.

The previous prime is 8028697549. The next prime is 8028697597. The reversal of 8028697553 is 3557968208.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6657254464 + 1371443089 = 81592^2 + 37033^2 .

It is a cyclic number.

It is not a de Polignac number, because 8028697553 - 2² = 8028697549 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8028697495 and 8028697504.

It is not a weakly prime, because it can be changed into another prime (8028696553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4014348776 + 4014348777.

It is an arithmetic number, because the mean of its divisors is an integer number (4014348777).

Almost surely, 2^8028697553 is an apocalyptic number.

It is an amenable number.

8028697553 is a deficient number, since it is larger than the sum of its proper divisors (1).

8028697553 is an equidigital number, since it uses as much as digits as its factorization.

8028697553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3628800, while the sum is 53.

The square root of 8028697553 is about 89602.9996875105. Note that the first 3 decimals coincide. The cubic root of 8028697553 is about 2002.3886088881.

The spelling of 8028697553 in words is "eight billion, twenty-eight million, six hundred ninety-seven thousand, five hundred fifty-three".