617421229 has 4 divisors (see below), whose sum is σ = 617471260. Its totient is φ = 617371200.

The previous prime is 617421193. The next prime is 617421239. The reversal of 617421229 is 922124716.

617421229 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 577440900 + 39980329 = 24030^2 + 6323^2 .

It is a cyclic number.

It is not a de Polignac number, because 617421229 - 2¹⁹ = 616896941 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 617421194 and 617421203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (617421239) 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, 8179 + ... + 36079.

It is an arithmetic number, because the mean of its divisors is an integer number (154367815).

Almost surely, 2^617421229 is an apocalyptic number.

It is an amenable number.

617421229 is a deficient number, since it is larger than the sum of its proper divisors (50031).

617421229 is a wasteful number, since it uses less digits than its factorization.

617421229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50030.

The product of its digits is 12096, while the sum is 34.

The square root of 617421229 is about 24847.9622705766. The cubic root of 617421229 is about 851.5180388350.

The spelling of 617421229 in words is "six hundred seventeen million, four hundred twenty-one thousand, two hundred twenty-nine".