348072681 has 32 divisors (see below), whose sum is σ = 528629760. Its totient is φ = 201801600.

The previous prime is 348072661. The next prime is 348072689. The reversal of 348072681 is 186270843.

It is not a de Polignac number, because 348072681 - 2¹⁰ = 348071657 is a prime.

It is a super-2 number, since 2×348072681² = 242309182517055522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (348072689) 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 31 ways as a sum of consecutive naturals, for example, 89136 + ... + 92958.

It is an arithmetic number, because the mean of its divisors is an integer number (16519680).

Almost surely, 2^348072681 is an apocalyptic number.

348072681 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

348072681 is a deficient number, since it is larger than the sum of its proper divisors (180557079).

348072681 is a wasteful number, since it uses less digits than its factorization.

348072681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3957.

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 348072681 is about 18656.7060597523. The cubic root of 348072681 is about 703.4339303163.

The spelling of 348072681 in words is "three hundred forty-eight million, seventy-two thousand, six hundred eighty-one".