628491195 has 12 divisors (see below), whose sum is σ = 1089384816. Its totient is φ = 335195280.

The previous prime is 628491163. The next prime is 628491217. The reversal of 628491195 is 591194826.

628491195 is a `hidden beast` number, since 628 + 4 + 9 + 1 + 19 + 5 = 666.

It is not a de Polignac number, because 628491195 - 2⁵ = 628491163 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 13966471 = 628491195 / (6 + 2 + 8 + 4 + 9 + 1 + 1 + 9 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 628491195.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6983191 + ... + 6983280.

It is an arithmetic number, because the mean of its divisors is an integer number (90782068).

Almost surely, 2^628491195 is an apocalyptic number.

628491195 is a deficient number, since it is larger than the sum of its proper divisors (460893621).

628491195 is a wasteful number, since it uses less digits than its factorization.

628491195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13966482 (or 13966479 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

The square root of 628491195 is about 25069.7266638470. The cubic root of 628491195 is about 856.5769808421.

It can be divided in two parts, 6284 and 91195, that added together give a palindrome (97479).

The spelling of 628491195 in words is "six hundred twenty-eight million, four hundred ninety-one thousand, one hundred ninety-five".