612722329 has 2 divisors, whose sum is σ = 612722330. Its totient is φ = 612722328.

The previous prime is 612722321. The next prime is 612722377. The reversal of 612722329 is 923227216.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 562638400 + 50083929 = 23720^2 + 7077^2 .

It is a cyclic number.

It is not a de Polignac number, because 612722329 - 2³ = 612722321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 612722294 and 612722303.

It is not a weakly prime, because it can be changed into another prime (612722321) 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, 306361164 + 306361165.

It is an arithmetic number, because the mean of its divisors is an integer number (306361165).

Almost surely, 2^612722329 is an apocalyptic number.

It is an amenable number.

612722329 is a deficient number, since it is larger than the sum of its proper divisors (1).

612722329 is an equidigital number, since it uses as much as digits as its factorization.

612722329 is an odious number, because the sum of its binary digits is odd.

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

The square root of 612722329 is about 24753.2286580963. The cubic root of 612722329 is about 849.3523689668.

The spelling of 612722329 in words is "six hundred twelve million, seven hundred twenty-two thousand, three hundred twenty-nine".