348731 has 2 divisors, whose sum is σ = 348732. Its totient is φ = 348730.

The previous prime is 348709. The next prime is 348739. The reversal of 348731 is 137843.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 348731 - 2¹⁰ = 347707 is a prime.

It is a super-2 number, since 2×348731² = 243226620722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 348731.

It is not a weakly prime, because it can be changed into another prime (348739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174365 + 174366.

It is an arithmetic number, because the mean of its divisors is an integer number (174366).

2³⁴⁸⁷³¹ is an apocalyptic number.

348731 is a deficient number, since it is larger than the sum of its proper divisors (1).

348731 is an equidigital number, since it uses as much as digits as its factorization.

348731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 26.

The square root of 348731 is about 590.5345036490. The cubic root of 348731 is about 70.3877125378.

The spelling of 348731 in words is "three hundred forty-eight thousand, seven hundred thirty-one".