627760081 has 4 divisors (see below), whose sum is σ = 676049332. Its totient is φ = 579470832.

The previous prime is 627760033. The next prime is 627760097. The reversal of 627760081 is 180067726.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 91374481 + 536385600 = 9559^2 + 23160^2 .

It is a cyclic number.

It is not a de Polignac number, because 627760081 - 2¹⁵ = 627727313 is a prime.

It is a super-2 number, since 2×627760081² = 788165438594253122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 627760081.

It is not an unprimeable number, because it can be changed into a prime (627760481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24144606 + ... + 24144631.

It is an arithmetic number, because the mean of its divisors is an integer number (169012333).

Almost surely, 2^627760081 is an apocalyptic number.

It is an amenable number.

627760081 is a deficient number, since it is larger than the sum of its proper divisors (48289251).

627760081 is a wasteful number, since it uses less digits than its factorization.

627760081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48289250.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 627760081 is about 25055.1408098218. The cubic root of 627760081 is about 856.2447044196.

The spelling of 627760081 in words is "six hundred twenty-seven million, seven hundred sixty thousand, eighty-one".