627760397 has 16 divisors (see below), whose sum is σ = 704417472. Its totient is φ = 554507520.

The previous prime is 627760351. The next prime is 627760403. The reversal of 627760397 is 793067726.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 627760397 - 2⁸ = 627760141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (627760327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89813 + ... + 96549.

It is an arithmetic number, because the mean of its divisors is an integer number (44026092).

Almost surely, 2^627760397 is an apocalyptic number.

It is an amenable number.

627760397 is a deficient number, since it is larger than the sum of its proper divisors (76657075).

627760397 is a wasteful number, since it uses less digits than its factorization.

627760397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6988.

The product of its (nonzero) digits is 666792, while the sum is 47.

The square root of 627760397 is about 25055.1471159121. The cubic root of 627760397 is about 856.2448480909.

The spelling of 627760397 in words is "six hundred twenty-seven million, seven hundred sixty thousand, three hundred ninety-seven".