348809831 has 4 divisors (see below), whose sum is σ = 349745352. Its totient is φ = 347874312.

The previous prime is 348809827. The next prime is 348809833. The reversal of 348809831 is 138908843.

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 348809831 - 2² = 348809827 is a prime.

It is a super-2 number, since 2×348809831² = 243336596404497122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (348809833) 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, 467201 + ... + 467946.

It is an arithmetic number, because the mean of its divisors is an integer number (87436338).

Almost surely, 2^348809831 is an apocalyptic number.

348809831 is a deficient number, since it is larger than the sum of its proper divisors (935521).

348809831 is an equidigital number, since it uses as much as digits as its factorization.

348809831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 935520.

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 348809831 is about 18676.4512421391. The cubic root of 348809831 is about 703.9301587643.

The spelling of 348809831 in words is "three hundred forty-eight million, eight hundred nine thousand, eight hundred thirty-one".