612642829 has 2 divisors, whose sum is σ = 612642830. Its totient is φ = 612642828.

The previous prime is 612642773. The next prime is 612642851. The reversal of 612642829 is 928246216.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 611226729 + 1416100 = 24723^2 + 1190^2 .

It is a cyclic number.

It is not a de Polignac number, because 612642829 - 2²⁵ = 579088397 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 612642791 and 612642800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (612642029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306321414 + 306321415.

It is an arithmetic number, because the mean of its divisors is an integer number (306321415).

Almost surely, 2^612642829 is an apocalyptic number.

It is an amenable number.

612642829 is a deficient number, since it is larger than the sum of its proper divisors (1).

612642829 is an equidigital number, since it uses as much as digits as its factorization.

612642829 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 40.

The square root of 612642829 is about 24751.6227548822. The cubic root of 612642829 is about 849.3156332216.

The spelling of 612642829 in words is "six hundred twelve million, six hundred forty-two thousand, eight hundred twenty-nine".