213862 has 8 divisors (see below), whose sum is σ = 349992. Its totient is φ = 97200.

The previous prime is 213859. The next prime is 213881. The reversal of 213862 is 268312.

213862 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 9721 = 213862 / (2 + 1 + 3 + 8 + 6 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4839 + ... + 4882.

It is an arithmetic number, because the mean of its divisors is an integer number (43749).

2²¹³⁸⁶² is an apocalyptic number.

213862 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

213862 is a deficient number, since it is larger than the sum of its proper divisors (136130).

213862 is a wasteful number, since it uses less digits than its factorization.

213862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9734.

The product of its digits is 576, while the sum is 22.

The square root of 213862 is about 462.4521596879. The cubic root of 213862 is about 59.8013802659.

It can be divided in two parts, 21 and 3862, that added together give a palindrome (3883).

The spelling of 213862 in words is "two hundred thirteen thousand, eight hundred sixty-two".