348216891 has 24 divisors (see below), whose sum is σ = 524606784. Its totient is φ = 203747040.

The previous prime is 348216871. The next prime is 348216901. The reversal of 348216891 is 198612843.

It is not a de Polignac number, because 348216891 - 2⁵ = 348216859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (348216871) 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, 21480 + ... + 34026.

It is an arithmetic number, because the mean of its divisors is an integer number (21858616).

Almost surely, 2^348216891 is an apocalyptic number.

348216891 is a deficient number, since it is larger than the sum of its proper divisors (176389893).

348216891 is a wasteful number, since it uses less digits than its factorization.

348216891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12619 (or 12590 counting only the distinct ones).

The product of its digits is 82944, while the sum is 42.

The square root of 348216891 is about 18660.5704896715. The cubic root of 348216891 is about 703.5310634787.

The spelling of 348216891 in words is "three hundred forty-eight million, two hundred sixteen thousand, eight hundred ninety-one".