611697701 has 4 divisors (see below), whose sum is σ = 614369100. Its totient is φ = 609026304.

The previous prime is 611697683. The next prime is 611697703. The reversal of 611697701 is 107796116.

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 330330625 + 281367076 = 18175^2 + 16774^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-611697701 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611697703) 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, 1335356 + ... + 1335813.

It is an arithmetic number, because the mean of its divisors is an integer number (153592275).

Almost surely, 2^611697701 is an apocalyptic number.

It is an amenable number.

611697701 is a deficient number, since it is larger than the sum of its proper divisors (2671399).

611697701 is a wasteful number, since it uses less digits than its factorization.

611697701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2671398.

The product of its (nonzero) digits is 15876, while the sum is 38.

The square root of 611697701 is about 24732.5231426153. The cubic root of 611697701 is about 848.8786602226.

The spelling of 611697701 in words is "six hundred eleven million, six hundred ninety-seven thousand, seven hundred one".