348978969 has 16 divisors (see below), whose sum is σ = 520435840. Its totient is φ = 231109200.

The previous prime is 348978961. The next prime is 348978979. The reversal of 348978969 is 969879843.

It is not a de Polignac number, because 348978969 - 2³ = 348978961 is a prime.

It is a super-2 number, since 2×348978969² = 243572641608605922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (348978961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38722 + ... + 46875.

It is an arithmetic number, because the mean of its divisors is an integer number (32527240).

Almost surely, 2^348978969 is an apocalyptic number.

It is an amenable number.

348978969 is a deficient number, since it is larger than the sum of its proper divisors (171456871).

348978969 is a wasteful number, since it uses less digits than its factorization.

348978969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85757 (or 85751 counting only the distinct ones).

The product of its digits is 23514624, while the sum is 63.

The square root of 348978969 is about 18680.9788019793. The cubic root of 348978969 is about 704.0439190328.

The spelling of 348978969 in words is "three hundred forty-eight million, nine hundred seventy-eight thousand, nine hundred sixty-nine".