348845657 has 4 divisors (see below), whose sum is σ = 358273956. Its totient is φ = 339417360.

The previous prime is 348845621. The next prime is 348845683. The reversal of 348845657 is 756548843.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 756548843 = 25127 ⋅30109.

It can be written as a sum of positive squares in 2 ways, for example, as 144384256 + 204461401 = 12016^2 + 14299^2 .

It is a cyclic number.

It is not a de Polignac number, because 348845657 - 2¹⁰ = 348844633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (348845257) 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, 4714094 + ... + 4714167.

It is an arithmetic number, because the mean of its divisors is an integer number (89568489).

Almost surely, 2^348845657 is an apocalyptic number.

348845657 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

348845657 is a deficient number, since it is larger than the sum of its proper divisors (9428299).

348845657 is an equidigital number, since it uses as much as digits as its factorization.

348845657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9428298.

The product of its digits is 3225600, while the sum is 50.

The square root of 348845657 is about 18677.4103397661. The cubic root of 348845657 is about 703.9542579881.

The spelling of 348845657 in words is "three hundred forty-eight million, eight hundred forty-five thousand, six hundred fifty-seven".