964611685 has 4 divisors (see below), whose sum is σ = 1157534028. Its totient is φ = 771689344.

The previous prime is 964611649. The next prime is 964611689. The reversal of 964611685 is 586116469.

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 343954116 + 620657569 = 18546^2 + 24913^2 .

It is a cyclic number.

It is not a de Polignac number, because 964611685 - 2⁹ = 964611173 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 (964611689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96461164 + ... + 96461173.

It is an arithmetic number, because the mean of its divisors is an integer number (289383507).

Almost surely, 2^964611685 is an apocalyptic number.

It is an amenable number.

964611685 is a deficient number, since it is larger than the sum of its proper divisors (192922343).

964611685 is a wasteful number, since it uses less digits than its factorization.

964611685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192922342.

The product of its digits is 311040, while the sum is 46.

The square root of 964611685 is about 31058.1983540578. The cubic root of 964611685 is about 988.0619449679.

The spelling of 964611685 in words is "nine hundred sixty-four million, six hundred eleven thousand, six hundred eighty-five".