628285099 has 16 divisors (see below), whose sum is σ = 717316992. Its totient is φ = 545154048.

The previous prime is 628285093. The next prime is 628285109. The reversal of 628285099 is 990582826.

It is a cyclic number.

It is not a de Polignac number, because 628285099 - 2⁵ = 628285067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (628285093) 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, 262462 + ... + 264844.

It is an arithmetic number, because the mean of its divisors is an integer number (44832312).

Almost surely, 2^628285099 is an apocalyptic number.

628285099 is a deficient number, since it is larger than the sum of its proper divisors (89031893).

628285099 is a wasteful number, since it uses less digits than its factorization.

628285099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3606.

The product of its (nonzero) digits is 622080, while the sum is 49.

The square root of 628285099 is about 25065.6158711491. The cubic root of 628285099 is about 856.4833405010.

The spelling of 628285099 in words is "six hundred twenty-eight million, two hundred eighty-five thousand, ninety-nine".