1630677197 has 2 divisors, whose sum is σ = 1630677198. Its totient is φ = 1630677196.

The previous prime is 1630677119. The next prime is 1630677211. The reversal of 1630677197 is 7917760361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1225420036 + 405257161 = 35006^2 + 20131^2 .

It is a cyclic number.

It is not a de Polignac number, because 1630677197 - 2¹⁴ = 1630660813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1630677397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 815338598 + 815338599.

It is an arithmetic number, because the mean of its divisors is an integer number (815338599).

Almost surely, 2^1630677197 is an apocalyptic number.

It is an amenable number.

1630677197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1630677197 is an equidigital number, since it uses as much as digits as its factorization.

1630677197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 333396, while the sum is 47.

The square root of 1630677197 is about 40381.6443077792. The cubic root of 1630677197 is about 1177.0348797299.

The spelling of 1630677197 in words is "one billion, six hundred thirty million, six hundred seventy-seven thousand, one hundred ninety-seven".