862406 has 4 divisors (see below), whose sum is σ = 1293612. Its totient is φ = 431202.

The previous prime is 862399. The next prime is 862409. The reversal of 862406 is 604268.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 862406.

It is not an unprimeable number, because it can be changed into a prime (862409) by changing a digit.

862406 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215600 + ... + 215603.

It is an arithmetic number, because the mean of its divisors is an integer number (323403).

2⁸⁶²⁴⁰⁶ is an apocalyptic number.

862406 is a deficient number, since it is larger than the sum of its proper divisors (431206).

862406 is a wasteful number, since it uses less digits than its factorization.

862406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431205.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 862406 is about 928.6581717726. The cubic root of 862406 is about 95.1854549019.

The spelling of 862406 in words is "eight hundred sixty-two thousand, four hundred six".