348972689 has 32 divisors (see below), whose sum is σ = 403885440. Its totient is φ = 299174400.

The previous prime is 348972671. The next prime is 348972691. The reversal of 348972689 is 986279843.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 348972689 - 2²⁰ = 347924113 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (348972619) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1653794 + ... + 1654004.

It is an arithmetic number, because the mean of its divisors is an integer number (12621420).

Almost surely, 2^348972689 is an apocalyptic number.

It is an amenable number.

348972689 is a deficient number, since it is larger than the sum of its proper divisors (54912751).

348972689 is a wasteful number, since it uses less digits than its factorization.

348972689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401.

The product of its digits is 5225472, while the sum is 56.

The square root of 348972689 is about 18680.8107158121. The cubic root of 348972689 is about 704.0396958344.

The spelling of 348972689 in words is "three hundred forty-eight million, nine hundred seventy-two thousand, six hundred eighty-nine".