611729345 has 8 divisors (see below), whose sum is σ = 734207976. Its totient is φ = 489294976.

The previous prime is 611729329. The next prime is 611729347. The reversal of 611729345 is 543927116.

It can be written as a sum of positive squares in 4 ways, for example, as 26863489 + 584865856 = 5183^2 + 24184^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 611729345 - 2⁴ = 611729329 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 611729299 and 611729308.

It is not an unprimeable number, because it can be changed into a prime (611729347) 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, 48629 + ... + 59901.

It is an arithmetic number, because the mean of its divisors is an integer number (91775997).

Almost surely, 2^611729345 is an apocalyptic number.

It is an amenable number.

611729345 is a deficient number, since it is larger than the sum of its proper divisors (122478631).

611729345 is a wasteful number, since it uses less digits than its factorization.

611729345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22131.

The product of its digits is 45360, while the sum is 38.

The square root of 611729345 is about 24733.1628588015. The cubic root of 611729345 is about 848.8932978741.

The spelling of 611729345 in words is "six hundred eleven million, seven hundred twenty-nine thousand, three hundred forty-five".