627506661 has 8 divisors (see below), whose sum is σ = 840923424. Its totient is φ = 416213840.

The previous prime is 627506653. The next prime is 627506683. The reversal of 627506661 is 166605726.

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 627506661 - 2³ = 627506653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (627506651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 530295 + ... + 531476.

It is an arithmetic number, because the mean of its divisors is an integer number (105115428).

Almost surely, 2^627506661 is an apocalyptic number.

It is an amenable number.

627506661 is a deficient number, since it is larger than the sum of its proper divisors (213416763).

627506661 is a wasteful number, since it uses less digits than its factorization.

627506661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061971.

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 627506661 is about 25050.0830537545. The cubic root of 627506661 is about 856.1294699827.

The spelling of 627506661 in words is "six hundred twenty-seven million, five hundred six thousand, six hundred sixty-one".