612660067 has 2 divisors, whose sum is σ = 612660068. Its totient is φ = 612660066.

The previous prime is 612660049. The next prime is 612660107. The reversal of 612660067 is 760066216.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-612660067 is a prime.

It is not a weakly prime, because it can be changed into another prime (612660047) 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, 306330033 + 306330034.

It is an arithmetic number, because the mean of its divisors is an integer number (306330034).

Almost surely, 2^612660067 is an apocalyptic number.

612660067 is a deficient number, since it is larger than the sum of its proper divisors (1).

612660067 is an equidigital number, since it uses as much as digits as its factorization.

612660067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 612660067 is about 24751.9709720256. The cubic root of 612660067 is about 849.3235989100.

The spelling of 612660067 in words is "six hundred twelve million, six hundred sixty thousand, sixty-seven".