611712079 has 4 divisors (see below), whose sum is σ = 667322280. Its totient is φ = 556101880.

The previous prime is 611712043. The next prime is 611712091. The reversal of 611712079 is 970217116.

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

It is a cyclic number.

It is not a de Polignac number, because 611712079 - 2⁷ = 611711951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611712019) 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, 27805084 + ... + 27805105.

It is an arithmetic number, because the mean of its divisors is an integer number (166830570).

Almost surely, 2^611712079 is an apocalyptic number.

611712079 is a deficient number, since it is larger than the sum of its proper divisors (55610201).

611712079 is a wasteful number, since it uses less digits than its factorization.

611712079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55610200.

The product of its (nonzero) digits is 5292, while the sum is 34.

The square root of 611712079 is about 24732.8138108061. The cubic root of 611712079 is about 848.8853111559.

The spelling of 611712079 in words is "six hundred eleven million, seven hundred twelve thousand, seventy-nine".