612289967 has 2 divisors, whose sum is σ = 612289968. Its totient is φ = 612289966.

The previous prime is 612289957. The next prime is 612290033. The reversal of 612289967 is 769982216.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 612289967 - 2⁶ = 612289903 is a prime.

It is a super-2 number, since 2×612289967² = 749798007377722178, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (612289927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306144983 + 306144984.

It is an arithmetic number, because the mean of its divisors is an integer number (306144984).

Almost surely, 2^612289967 is an apocalyptic number.

612289967 is a deficient number, since it is larger than the sum of its proper divisors (1).

612289967 is an equidigital number, since it uses as much as digits as its factorization.

612289967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 50.

The square root of 612289967 is about 24744.4936703098. The cubic root of 612289967 is about 849.1525426711.

The spelling of 612289967 in words is "six hundred twelve million, two hundred eighty-nine thousand, nine hundred sixty-seven".