345552685 has 4 divisors (see below), whose sum is σ = 414663228. Its totient is φ = 276442144.

The previous prime is 345552679. The next prime is 345552689. The reversal of 345552685 is 586255543.

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 125148969 + 220403716 = 11187^2 + 14846^2 .

It is a cyclic number.

It is not a de Polignac number, because 345552685 - 2⁹ = 345552173 is a prime.

It is a super-2 number, since 2×345552685² = 238813316221418450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345552689) 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, 34555264 + ... + 34555273.

It is an arithmetic number, because the mean of its divisors is an integer number (103665807).

Almost surely, 2^345552685 is an apocalyptic number.

It is an amenable number.

345552685 is a deficient number, since it is larger than the sum of its proper divisors (69110543).

345552685 is an equidigital number, since it uses as much as digits as its factorization.

345552685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69110542.

The product of its digits is 720000, while the sum is 43.

The square root of 345552685 is about 18589.0474473546. The cubic root of 345552685 is about 701.7322302698.

The spelling of 345552685 in words is "three hundred forty-five million, five hundred fifty-two thousand, six hundred eighty-five".