348931 has 4 divisors (see below), whose sum is σ = 380664. Its totient is φ = 317200.

The previous prime is 348923. The next prime is 348937. The reversal of 348931 is 139843.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 139843 = 11 ⋅12713.

It is a cyclic number.

It is not a de Polignac number, because 348931 - 2³ = 348923 is a prime.

It is a super-2 number, since 2×348931² = 243505685522, which contains 22 as substring.

It is a Duffinian number.

348931 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 348931.

It is not an unprimeable number, because it can be changed into a prime (348937) 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, 15850 + ... + 15871.

It is an arithmetic number, because the mean of its divisors is an integer number (95166).

2³⁴⁸⁹³¹ is an apocalyptic number.

348931 is a deficient number, since it is larger than the sum of its proper divisors (31733).

348931 is a wasteful number, since it uses less digits than its factorization.

348931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31732.

The product of its digits is 2592, while the sum is 28.

The square root of 348931 is about 590.7038174923. The cubic root of 348931 is about 70.4011659371.

The spelling of 348931 in words is "three hundred forty-eight thousand, nine hundred thirty-one".