348475391 has 4 divisors (see below), whose sum is σ = 380154984. Its totient is φ = 316795800.

The previous prime is 348475349. The next prime is 348475403. The reversal of 348475391 is 193574843.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 348475391 - 2¹⁰ = 348474367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (348475301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15839780 + ... + 15839801.

It is an arithmetic number, because the mean of its divisors is an integer number (95038746).

Almost surely, 2^348475391 is an apocalyptic number.

348475391 is a deficient number, since it is larger than the sum of its proper divisors (31679593).

348475391 is a wasteful number, since it uses less digits than its factorization.

348475391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31679592.

The product of its digits is 362880, while the sum is 44.

The square root of 348475391 is about 18667.4955738578. The cubic root of 348475391 is about 703.7051099816.

The spelling of 348475391 in words is "three hundred forty-eight million, four hundred seventy-five thousand, three hundred ninety-one".