348728613 has 8 divisors (see below), whose sum is σ = 465074208. Its totient is φ = 232434384.

The previous prime is 348728609. The next prime is 348728617. The reversal of 348728613 is 316827843.

It is an interprime number because it is at equal distance from previous prime (348728609) and next prime (348728617).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 348728613 - 2² = 348728609 is a prime.

It is a super-2 number, since 2×348728613² = 243223291049807538, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (348728617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7695 + ... + 27507.

It is an arithmetic number, because the mean of its divisors is an integer number (58134276).

Almost surely, 2^348728613 is an apocalyptic number.

It is an amenable number.

348728613 is a deficient number, since it is larger than the sum of its proper divisors (116345595).

348728613 is a wasteful number, since it uses less digits than its factorization.

348728613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25683.

The product of its digits is 193536, while the sum is 42.

The square root of 348728613 is about 18674.2767731444. The cubic root of 348728613 is about 703.8755194045.

The spelling of 348728613 in words is "three hundred forty-eight million, seven hundred twenty-eight thousand, six hundred thirteen".