629531197 has 2 divisors, whose sum is σ = 629531198. Its totient is φ = 629531196.

The previous prime is 629531173. The next prime is 629531299. The reversal of 629531197 is 791135926.

629531197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 611375076 + 18156121 = 24726^2 + 4261^2 .

It is a cyclic number.

It is not a de Polignac number, because 629531197 - 2¹¹ = 629529149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (629531107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314765598 + 314765599.

It is an arithmetic number, because the mean of its divisors is an integer number (314765599).

Almost surely, 2^629531197 is an apocalyptic number.

It is an amenable number.

629531197 is a deficient number, since it is larger than the sum of its proper divisors (1).

629531197 is an equidigital number, since it uses as much as digits as its factorization.

629531197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 102060, while the sum is 43.

The square root of 629531197 is about 25090.4602787593. The cubic root of 629531197 is about 857.0491968706.

The spelling of 629531197 in words is "six hundred twenty-nine million, five hundred thirty-one thousand, one hundred ninety-seven".