348031685 has 4 divisors (see below), whose sum is σ = 417638028. Its totient is φ = 278425344.

The previous prime is 348031679. The next prime is 348031709. The reversal of 348031685 is 586130843.

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 52157284 + 295874401 = 7222^2 + 17201^2 .

It is a cyclic number.

It is not a de Polignac number, because 348031685 - 2¹⁴ = 348015301 is a prime.

It is a super-2 number, since 2×348031685² = 242252107527878450, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34803164 + ... + 34803173.

It is an arithmetic number, because the mean of its divisors is an integer number (104409507).

Almost surely, 2^348031685 is an apocalyptic number.

It is an amenable number.

348031685 is a deficient number, since it is larger than the sum of its proper divisors (69606343).

348031685 is an equidigital number, since it uses as much as digits as its factorization.

348031685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69606342.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 348031685 is about 18655.6073339894. The cubic root of 348031685 is about 703.4063124161.

The spelling of 348031685 in words is "three hundred forty-eight million, thirty-one thousand, six hundred eighty-five".