628053697 has 2 divisors, whose sum is σ = 628053698. Its totient is φ = 628053696.

The previous prime is 628053677. The next prime is 628053737. The reversal of 628053697 is 796350826.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 526427136 + 101626561 = 22944^2 + 10081^2 .

It is a cyclic number.

It is not a de Polignac number, because 628053697 - 2¹¹ = 628051649 is a prime.

It is not a weakly prime, because it can be changed into another prime (628053637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314026848 + 314026849.

It is an arithmetic number, because the mean of its divisors is an integer number (314026849).

Almost surely, 2^628053697 is an apocalyptic number.

It is an amenable number.

628053697 is a deficient number, since it is larger than the sum of its proper divisors (1).

628053697 is an equidigital number, since it uses as much as digits as its factorization.

628053697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 46.

The square root of 628053697 is about 25060.9995211683. Note that the first 3 decimals coincide. The cubic root of 628053697 is about 856.3781778951.

The spelling of 628053697 in words is "six hundred twenty-eight million, fifty-three thousand, six hundred ninety-seven".