348680857 has 4 divisors (see below), whose sum is σ = 398492416. Its totient is φ = 298869300.

The previous prime is 348680821. The next prime is 348680861. The reversal of 348680857 is 758086843.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 348680857 - 2¹¹ = 348678809 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 348680857.

It is not an unprimeable number, because it can be changed into a prime (348680887) 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, 24905769 + ... + 24905782.

It is an arithmetic number, because the mean of its divisors is an integer number (99623104).

Almost surely, 2^348680857 is an apocalyptic number.

It is an amenable number.

348680857 is a deficient number, since it is larger than the sum of its proper divisors (49811559).

348680857 is an equidigital number, since it uses as much as digits as its factorization.

348680857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49811558.

The product of its (nonzero) digits is 1290240, while the sum is 49.

The square root of 348680857 is about 18672.9980720826. The cubic root of 348680857 is about 703.8433876240.

The spelling of 348680857 in words is "three hundred forty-eight million, six hundred eighty thousand, eight hundred fifty-seven".