628086485 has 8 divisors (see below), whose sum is σ = 811681080. Its totient is φ = 463817664.

The previous prime is 628086479. The next prime is 628086493. The reversal of 628086485 is 584680826.

It can be written as a sum of positive squares in 4 ways, for example, as 72965764 + 555120721 = 8542^2 + 23561^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 628086485 - 2⁸ = 628086229 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4831370 + ... + 4831499.

It is an arithmetic number, because the mean of its divisors is an integer number (101460135).

Almost surely, 2^628086485 is an apocalyptic number.

628086485 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

628086485 is a deficient number, since it is larger than the sum of its proper divisors (183594595).

628086485 is a wasteful number, since it uses less digits than its factorization.

628086485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9662887.

The product of its (nonzero) digits is 737280, while the sum is 47.

The square root of 628086485 is about 25061.6536764835. The cubic root of 628086485 is about 856.3930802509.

The spelling of 628086485 in words is "six hundred twenty-eight million, eighty-six thousand, four hundred eighty-five".