7273028657 has 2 divisors, whose sum is σ = 7273028658. Its totient is φ = 7273028656.

The previous prime is 7273028627. The next prime is 7273028671. The reversal of 7273028657 is 7568203727.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4167864481 + 3105164176 = 64559^2 + 55724^2 .

It is a cyclic number.

It is not a de Polignac number, because 7273028657 - 2⁶ = 7273028593 is a prime.

It is not a weakly prime, because it can be changed into another prime (7273028627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3636514328 + 3636514329.

It is an arithmetic number, because the mean of its divisors is an integer number (3636514329).

Almost surely, 2^7273028657 is an apocalyptic number.

It is an amenable number.

7273028657 is a deficient number, since it is larger than the sum of its proper divisors (1).

7273028657 is an equidigital number, since it uses as much as digits as its factorization.

7273028657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 987840, while the sum is 47.

The square root of 7273028657 is about 85282.0535458663. The cubic root of 7273028657 is about 1937.4853749128.

The spelling of 7273028657 in words is "seven billion, two hundred seventy-three million, twenty-eight thousand, six hundred fifty-seven".