746666685 has 24 divisors (see below), whose sum is σ = 1296186840. Its totient is φ = 397617792.

The previous prime is 746666681. The next prime is 746666689. The reversal of 746666685 is 586666647.

746666685 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (746666681) and next prime (746666689).

It can be written as a sum of positive squares in 4 ways, for example, as 478165689 + 268500996 = 21867^2 + 16386^2 .

It is not a de Polignac number, because 746666685 - 2² = 746666681 is a prime.

It is a super-2 number, since 2×746666685² = 1115022276977778450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (746666681) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18211 + ... + 42719.

It is an arithmetic number, because the mean of its divisors is an integer number (54007785).

Almost surely, 2^746666685 is an apocalyptic number.

It is an amenable number.

746666685 is a deficient number, since it is larger than the sum of its proper divisors (549520155).

746666685 is a wasteful number, since it uses less digits than its factorization.

746666685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25197 (or 25194 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 54.

The square root of 746666685 is about 27325.2023780246. The cubic root of 746666685 is about 907.2122895522.

The spelling of 746666685 in words is "seven hundred forty-six million, six hundred sixty-six thousand, six hundred eighty-five".