628746085 has 16 divisors (see below), whose sum is σ = 825596352. Its totient is φ = 455875200.

The previous prime is 628746077. The next prime is 628746089. The reversal of 628746085 is 580647826.

It is not a de Polignac number, because 628746085 - 2³ = 628746077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628746089) 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, 937 + ... + 35473.

It is an arithmetic number, because the mean of its divisors is an integer number (51599772).

Almost surely, 2^628746085 is an apocalyptic number.

It is an amenable number.

628746085 is a deficient number, since it is larger than the sum of its proper divisors (196850267).

628746085 is a wasteful number, since it uses less digits than its factorization.

628746085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34884.

The product of its (nonzero) digits is 645120, while the sum is 46.

The square root of 628746085 is about 25074.8097699664. The cubic root of 628746085 is about 856.6927625743.

The spelling of 628746085 in words is "six hundred twenty-eight million, seven hundred forty-six thousand, eighty-five".