612353217 has 8 divisors (see below), whose sum is σ = 933109696. Its totient is φ = 349916112.

The previous prime is 612353201. The next prime is 612353221. The reversal of 612353217 is 712353216.

612353217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 612353217 - 2⁴ = 612353201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (612353237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14579818 + ... + 14579859.

It is an arithmetic number, because the mean of its divisors is an integer number (116638712).

Almost surely, 2^612353217 is an apocalyptic number.

It is an amenable number.

612353217 is a deficient number, since it is larger than the sum of its proper divisors (320756479).

612353217 is a wasteful number, since it uses less digits than its factorization.

612353217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29159687.

The product of its digits is 7560, while the sum is 30.

The square root of 612353217 is about 24745.7716994237. The cubic root of 612353217 is about 849.1817810233.

Subtracting 612353217 from its reverse (712353216), we obtain a palindrome (99999999).

It can be divided in two parts, 6123 and 53217, that added together give a triangular number (59340 = T₃₄₄).

The spelling of 612353217 in words is "six hundred twelve million, three hundred fifty-three thousand, two hundred seventeen".