670269629 has 2 divisors, whose sum is σ = 670269630. Its totient is φ = 670269628.

The previous prime is 670269583. The next prime is 670269637. The reversal of 670269629 is 926962076.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 404090404 + 266179225 = 20102^2 + 16315^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-670269629 is a prime.

It is a super-2 number, since 2×670269629² = 898522751119595282, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (670169629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335134814 + 335134815.

It is an arithmetic number, because the mean of its divisors is an integer number (335134815).

Almost surely, 2^670269629 is an apocalyptic number.

It is an amenable number.

670269629 is a deficient number, since it is larger than the sum of its proper divisors (1).

670269629 is an equidigital number, since it uses as much as digits as its factorization.

670269629 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 489888, while the sum is 47.

The square root of 670269629 is about 25889.5660257178. The cubic root of 670269629 is about 875.1513769120.

The spelling of 670269629 in words is "six hundred seventy million, two hundred sixty-nine thousand, six hundred twenty-nine".