611091673 has 4 divisors (see below), whose sum is σ = 647038260. Its totient is φ = 575145088.

The previous prime is 611091647. The next prime is 611091709. The reversal of 611091673 is 376190116.

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 558282384 + 52809289 = 23628^2 + 7267^2 .

It is not a de Polignac number, because 611091673 - 2²¹ = 608994521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (611091373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17973268 + ... + 17973301.

It is an arithmetic number, because the mean of its divisors is an integer number (161759565).

Almost surely, 2^611091673 is an apocalyptic number.

It is an amenable number.

611091673 is a deficient number, since it is larger than the sum of its proper divisors (35946587).

611091673 is a wasteful number, since it uses less digits than its factorization.

611091673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35946586.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 611091673 is about 24720.2684653707. The cubic root of 611091673 is about 848.5982307330.

The spelling of 611091673 in words is "six hundred eleven million, ninety-one thousand, six hundred seventy-three".