628026851 has 4 divisors (see below), whose sum is σ = 630262104. Its totient is φ = 625791600.

The previous prime is 628026827. The next prime is 628026899. The reversal of 628026851 is 158620826.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-628026851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (628026821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1117205 + ... + 1117766.

It is an arithmetic number, because the mean of its divisors is an integer number (157565526).

Almost surely, 2^628026851 is an apocalyptic number.

628026851 is a deficient number, since it is larger than the sum of its proper divisors (2235253).

628026851 is a wasteful number, since it uses less digits than its factorization.

628026851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2235252.

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 628026851 is about 25060.4639023303. The cubic root of 628026851 is about 856.3659758300.

The spelling of 628026851 in words is "six hundred twenty-eight million, twenty-six thousand, eight hundred fifty-one".