1628485597 has 2 divisors, whose sum is σ = 1628485598. Its totient is φ = 1628485596.

The previous prime is 1628485577. The next prime is 1628485603. The reversal of 1628485597 is 7955848261.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 988850916 + 639634681 = 31446^2 + 25291^2 .

It is a cyclic number.

It is not a de Polignac number, because 1628485597 - 2²⁷ = 1494267869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1628485577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 814242798 + 814242799.

It is an arithmetic number, because the mean of its divisors is an integer number (814242799).

Almost surely, 2^1628485597 is an apocalyptic number.

It is an amenable number.

1628485597 is a deficient number, since it is larger than the sum of its proper divisors (1).

1628485597 is an equidigital number, since it uses as much as digits as its factorization.

1628485597 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4838400, while the sum is 55.

The square root of 1628485597 is about 40354.4990924184. The cubic root of 1628485597 is about 1176.5073389530.

The spelling of 1628485597 in words is "one billion, six hundred twenty-eight million, four hundred eighty-five thousand, five hundred ninety-seven".