345286 has 4 divisors (see below), whose sum is σ = 517932. Its totient is φ = 172642.

The previous prime is 345271. The next prime is 345307. The reversal of 345286 is 682543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 682543 = 593 ⋅1151.

It is a d-powerful number, because it can be written as 3⁴ + 4⁹ + 2¹⁵ + 5⁵ + 8³ + 6⁶ .

It is a plaindrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86320 + ... + 86323.

It is an arithmetic number, because the mean of its divisors is an integer number (129483).

2³⁴⁵²⁸⁶ is an apocalyptic number.

345286 is a deficient number, since it is larger than the sum of its proper divisors (172646).

345286 is a wasteful number, since it uses less digits than its factorization.

345286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172645.

The product of its digits is 5760, while the sum is 28.

The square root of 345286 is about 587.6104151562. The cubic root of 345286 is about 70.1551660001.

The spelling of 345286 in words is "three hundred forty-five thousand, two hundred eighty-six".