627115481 has 2 divisors, whose sum is σ = 627115482. Its totient is φ = 627115480.

The previous prime is 627115453. The next prime is 627115487. The reversal of 627115481 is 184511726.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 603193600 + 23921881 = 24560^2 + 4891^2 .

It is a cyclic number.

It is not a de Polignac number, because 627115481 - 2¹⁴ = 627099097 is a prime.

It is a super-2 number, since 2×627115481² = 786547653019722722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (627115487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313557740 + 313557741.

It is an arithmetic number, because the mean of its divisors is an integer number (313557741).

Almost surely, 2^627115481 is an apocalyptic number.

It is an amenable number.

627115481 is a deficient number, since it is larger than the sum of its proper divisors (1).

627115481 is an equidigital number, since it uses as much as digits as its factorization.

627115481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13440, while the sum is 35.

The square root of 627115481 is about 25042.2738783841. The cubic root of 627115481 is about 855.9515327793.

The spelling of 627115481 in words is "six hundred twenty-seven million, one hundred fifteen thousand, four hundred eighty-one".