627649273 has 4 divisors (see below), whose sum is σ = 628084480. Its totient is φ = 627214068.

The previous prime is 627649261. The next prime is 627649283. The reversal of 627649273 is 372946726.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 627649273 - 2⁹ = 627648761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (627649223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215433 + ... + 218326.

It is an arithmetic number, because the mean of its divisors is an integer number (157021120).

Almost surely, 2^627649273 is an apocalyptic number.

It is an amenable number.

627649273 is a deficient number, since it is larger than the sum of its proper divisors (435207).

627649273 is a wasteful number, since it uses less digits than its factorization.

627649273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435206.

The product of its digits is 762048, while the sum is 46.

The square root of 627649273 is about 25052.9294295098. The cubic root of 627649273 is about 856.1943219306.

The spelling of 627649273 in words is "six hundred twenty-seven million, six hundred forty-nine thousand, two hundred seventy-three".