348978971 has 4 divisors (see below), whose sum is σ = 380704344. Its totient is φ = 317253600.

The previous prime is 348978961. The next prime is 348978979. The reversal of 348978971 is 179879843.

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 348978971 - 2¹⁸ = 348716827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (348978979) 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, 15862670 + ... + 15862691.

It is an arithmetic number, because the mean of its divisors is an integer number (95176086).

Almost surely, 2^348978971 is an apocalyptic number.

348978971 is a deficient number, since it is larger than the sum of its proper divisors (31725373).

348978971 is a wasteful number, since it uses less digits than its factorization.

348978971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31725372.

The product of its digits is 3048192, while the sum is 56.

The square root of 348978971 is about 18680.9788555097. The cubic root of 348978971 is about 704.0439203778.

The spelling of 348978971 in words is "three hundred forty-eight million, nine hundred seventy-eight thousand, nine hundred seventy-one".