627064481 has 8 divisors (see below), whose sum is σ = 632307720. Its totient is φ = 621831168.

The previous prime is 627064469. The next prime is 627064519. The reversal of 627064481 is 184460726.

It can be written as a sum of positive squares in 4 ways, for example, as 179318881 + 447745600 = 13391^2 + 21160^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 627064481 - 2²² = 622870177 is a prime.

It is a super-2 number, since 2×627064481² = 786419726663598722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (627064411) 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 in 7 ways as a sum of consecutive naturals, for example, 175925 + ... + 179453.

It is an arithmetic number, because the mean of its divisors is an integer number (79038465).

Almost surely, 2^627064481 is an apocalyptic number.

It is an amenable number.

627064481 is a deficient number, since it is larger than the sum of its proper divisors (5243239).

627064481 is a wasteful number, since it uses less digits than its factorization.

627064481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4963.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 627064481 is about 25041.2555795431. The cubic root of 627064481 is about 855.9283288065.

The spelling of 627064481 in words is "six hundred twenty-seven million, sixty-four thousand, four hundred eighty-one".