628100235 has 24 divisors (see below), whose sum is σ = 1244237280. Its totient is φ = 287131392.

The previous prime is 628100177. The next prime is 628100237. The reversal of 628100235 is 532001826.

628100235 is a `hidden beast` number, since 628 + 1 + 0 + 0 + 2 + 35 = 666.

It is not a de Polignac number, because 628100235 - 2⁶ = 628100171 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 628100199 and 628100208.

It is not an unprimeable number, because it can be changed into a prime (628100237) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 996670 + ... + 997299.

It is an arithmetic number, because the mean of its divisors is an integer number (51843220).

Almost surely, 2^628100235 is an apocalyptic number.

628100235 is a deficient number, since it is larger than the sum of its proper divisors (616137045).

628100235 is a wasteful number, since it uses less digits than its factorization.

628100235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1993987 (or 1993984 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 628100235 is about 25061.9279984601. The cubic root of 628100235 is about 856.3993295596.

The spelling of 628100235 in words is "six hundred twenty-eight million, one hundred thousand, two hundred thirty-five".