627945697 has 4 divisors (see below), whose sum is σ = 628015360. Its totient is φ = 627876036.

The previous prime is 627945691. The next prime is 627945719. The reversal of 627945697 is 796549726.

627945697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 627945697 - 2⁷ = 627945569 is a prime.

It is a super-3 number, since 3×627945697³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (627945691) 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, 18873 + ... + 40150.

It is an arithmetic number, because the mean of its divisors is an integer number (157003840).

Almost surely, 2^627945697 is an apocalyptic number.

It is an amenable number.

627945697 is a deficient number, since it is larger than the sum of its proper divisors (69663).

627945697 is a wasteful number, since it uses less digits than its factorization.

627945697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69662.

The product of its digits is 5715360, while the sum is 55.

The square root of 627945697 is about 25058.8446860585. The cubic root of 627945697 is about 856.3290875356.

The spelling of 627945697 in words is "six hundred twenty-seven million, nine hundred forty-five thousand, six hundred ninety-seven".