627505997 has 2 divisors, whose sum is σ = 627505998. Its totient is φ = 627505996.

The previous prime is 627505969. The next prime is 627506003. The reversal of 627505997 is 799505726.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 343212676 + 284293321 = 18526^2 + 16861^2 .

It is a cyclic number.

It is not a de Polignac number, because 627505997 - 2¹⁴ = 627489613 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (627505397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313752998 + 313752999.

It is an arithmetic number, because the mean of its divisors is an integer number (313752999).

Almost surely, 2^627505997 is an apocalyptic number.

It is an amenable number.

627505997 is a deficient number, since it is larger than the sum of its proper divisors (1).

627505997 is an equidigital number, since it uses as much as digits as its factorization.

627505997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1190700, while the sum is 50.

The square root of 627505997 is about 25050.0698003020. The cubic root of 627505997 is about 856.1291680097.

The spelling of 627505997 in words is "six hundred twenty-seven million, five hundred five thousand, nine hundred ninety-seven".