628852887 has 36 divisors (see below), whose sum is σ = 1015395264. Its totient is φ = 374474880.

The previous prime is 628852883. The next prime is 628852901. The reversal of 628852887 is 788258826.

628852887 is a `hidden beast` number, since 628 + 8 + 5 + 2 + 8 + 8 + 7 = 666.

It is not a de Polignac number, because 628852887 - 2² = 628852883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628852883) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 40483 + ... + 53819.

It is an arithmetic number, because the mean of its divisors is an integer number (28205424).

Almost surely, 2^628852887 is an apocalyptic number.

628852887 is a deficient number, since it is larger than the sum of its proper divisors (386542377).

628852887 is a wasteful number, since it uses less digits than its factorization.

628852887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13400 (or 13384 counting only the distinct ones).

The product of its digits is 3440640, while the sum is 54.

The square root of 628852887 is about 25076.9393467385. The cubic root of 628852887 is about 856.7412672211.

The spelling of 628852887 in words is "six hundred twenty-eight million, eight hundred fifty-two thousand, eight hundred eighty-seven".