348921 has 8 divisors (see below), whose sum is σ = 516960. Its totient is φ = 232596.

The previous prime is 348919. The next prime is 348923. The reversal of 348921 is 129843.

It is an interprime number because it is at equal distance from previous prime (348919) and next prime (348923).

It is not a de Polignac number, because 348921 - 2¹ = 348919 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 12923 = 348921 / (3 + 4 + 8 + 9 + 2 + 1).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 348921.

It is not an unprimeable number, because it can be changed into a prime (348923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6435 + ... + 6488.

It is an arithmetic number, because the mean of its divisors is an integer number (64620).

2³⁴⁸⁹²¹ is an apocalyptic number.

It is an amenable number.

348921 is a deficient number, since it is larger than the sum of its proper divisors (168039).

348921 is a wasteful number, since it uses less digits than its factorization.

348921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12932 (or 12926 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 348921 is about 590.6953529528. The cubic root of 348921 is about 70.4004933893.

The spelling of 348921 in words is "three hundred forty-eight thousand, nine hundred twenty-one".