670551029 has 2 divisors, whose sum is σ = 670551030. Its totient is φ = 670551028.

The previous prime is 670550999. The next prime is 670551041. The reversal of 670551029 is 920155076.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 670551025 + 4 = 25895^2 + 2^2 .

It is a cyclic number.

It is not a de Polignac number, because 670551029 - 2⁸ = 670550773 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 670551029.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (670551829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335275514 + 335275515.

It is an arithmetic number, because the mean of its divisors is an integer number (335275515).

Almost surely, 2^670551029 is an apocalyptic number.

It is an amenable number.

670551029 is a deficient number, since it is larger than the sum of its proper divisors (1).

670551029 is an equidigital number, since it uses as much as digits as its factorization.

670551029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 670551029 is about 25895.0000772350. Note that the first 4 decimals coincide. The cubic root of 670551029 is about 875.2738316831.

The spelling of 670551029 in words is "six hundred seventy million, five hundred fifty-one thousand, twenty-nine".