627689461 has 12 divisors (see below), whose sum is σ = 733963692. Its totient is φ = 535223808.

The previous prime is 627689449. The next prime is 627689483. The reversal of 627689461 is 164986726.

It can be written as a sum of positive squares in 2 ways, for example, as 428738436 + 198951025 = 20706^2 + 14105^2 .

It is not a de Polignac number, because 627689461 - 2⁹ = 627688949 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (627689431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23730 + ... + 42643.

It is an arithmetic number, because the mean of its divisors is an integer number (61163641).

Almost surely, 2^627689461 is an apocalyptic number.

It is an amenable number.

627689461 is a deficient number, since it is larger than the sum of its proper divisors (106274231).

627689461 is a wasteful number, since it uses less digits than its factorization.

627689461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66580 (or 66573 counting only the distinct ones).

The product of its digits is 870912, while the sum is 49.

The square root of 627689461 is about 25053.7314785642. The cubic root of 627689461 is about 856.2125954073.

The spelling of 627689461 in words is "six hundred twenty-seven million, six hundred eighty-nine thousand, four hundred sixty-one".