627998377 has 8 divisors (see below), whose sum is σ = 671041800. Its totient is φ = 585633024.

The previous prime is 627998369. The next prime is 627998381. The reversal of 627998377 is 773899726.

It can be written as a sum of positive squares in 4 ways, for example, as 117961321 + 510037056 = 10861^2 + 22584^2 .

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 627998377 - 2³ = 627998369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (627998387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167602 + ... + 171307.

It is an arithmetic number, because the mean of its divisors is an integer number (83880225).

Almost surely, 2^627998377 is an apocalyptic number.

It is an amenable number.

627998377 is a deficient number, since it is larger than the sum of its proper divisors (43043423).

627998377 is a wasteful number, since it uses less digits than its factorization.

627998377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339035.

The product of its digits is 8001504, while the sum is 58.

The square root of 627998377 is about 25059.8957898871. The cubic root of 627998377 is about 856.3530334252.

The spelling of 627998377 in words is "six hundred twenty-seven million, nine hundred ninety-eight thousand, three hundred seventy-seven".