612629 has 4 divisors (see below), whose sum is σ = 648684. Its totient is φ = 576576.

The previous prime is 612613. The next prime is 612637. The reversal of 612629 is 926216.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 255025 + 357604 = 505^2 + 598^2 .

It is a cyclic number.

It is not a de Polignac number, because 612629 - 2⁴ = 612613 is a prime.

It is a Duffinian number.

612629 is a modest number, since divided by 629 gives 612 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 612598 and 612607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18002 + ... + 18035.

It is an arithmetic number, because the mean of its divisors is an integer number (162171).

2⁶¹²⁶²⁹ is an apocalyptic number.

It is an amenable number.

612629 is a deficient number, since it is larger than the sum of its proper divisors (36055).

612629 is a wasteful number, since it uses less digits than its factorization.

612629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36054.

The product of its digits is 1296, while the sum is 26.

The square root of 612629 is about 782.7062028629. The cubic root of 612629 is about 84.9309242726.

The spelling of 612629 in words is "six hundred twelve thousand, six hundred twenty-nine".