628974357197 has 2 divisors, whose sum is σ = 628974357198. Its totient is φ = 628974357196.

The previous prime is 628974357119. The next prime is 628974357233. The reversal of 628974357197 is 791753479826.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 347983189801 + 280991167396 = 589901^2 + 530086^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-628974357197 is a prime.

It is a super-2 number, since 2×628974357197² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (628974357097) 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 as a sum of consecutive naturals, namely, 314487178598 + 314487178599.

It is an arithmetic number, because the mean of its divisors is an integer number (314487178599).

Almost surely, 2^628974357197 is an apocalyptic number.

It is an amenable number.

628974357197 is a deficient number, since it is larger than the sum of its proper divisors (1).

628974357197 is an equidigital number, since it uses as much as digits as its factorization.

628974357197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 160030080, while the sum is 68.

The spelling of 628974357197 in words is "six hundred twenty-eight billion, nine hundred seventy-four million, three hundred fifty-seven thousand, one hundred ninety-seven".