628477992 has 48 divisors (see below), whose sum is σ = 1722651840. Its totient is φ = 206966688.

The previous prime is 628477987. The next prime is 628477999. The reversal of 628477992 is 299774826.

628477992 is a `hidden beast` number, since 628 + 4 + 7 + 7 + 9 + 9 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (628477999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46608 + ... + 58559.

It is an arithmetic number, because the mean of its divisors is an integer number (35888580).

Almost surely, 2^628477992 is an apocalyptic number.

It is an amenable number.

628477992 is an abundant number, since it is smaller than the sum of its proper divisors (1094173848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

628477992 is a wasteful number, since it uses less digits than its factorization.

628477992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105262 (or 105255 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The square root of 628477992 is about 25069.4633368965. The cubic root of 628477992 is about 856.5709826329.

The spelling of 628477992 in words is "six hundred twenty-eight million, four hundred seventy-seven thousand, nine hundred ninety-two".