350861 has 4 divisors (see below), whose sum is σ = 400992. Its totient is φ = 300732.

The previous prime is 350851. The next prime is 350869. The reversal of 350861 is 168053.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 168053 = 163 ⋅1031.

It is a cyclic number.

It is not a de Polignac number, because 350861 - 2¹⁰ = 349837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (350869) 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, 25055 + ... + 25068.

It is an arithmetic number, because the mean of its divisors is an integer number (100248).

2³⁵⁰⁸⁶¹ is an apocalyptic number.

It is an amenable number.

350861 is a deficient number, since it is larger than the sum of its proper divisors (50131).

350861 is an equidigital number, since it uses as much as digits as its factorization.

350861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50130.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 350861 is about 592.3352091510. The cubic root of 350861 is about 70.5307278489.

The spelling of 350861 in words is "three hundred fifty thousand, eight hundred sixty-one".