1623862 has 4 divisors (see below), whose sum is σ = 2435796. Its totient is φ = 811930.

The previous prime is 1623859. The next prime is 1623863. The reversal of 1623862 is 2683261.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1623862.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1623863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 405964 + ... + 405967.

It is an arithmetic number, because the mean of its divisors is an integer number (608949).

2^1623862 is an apocalyptic number.

1623862 is a deficient number, since it is larger than the sum of its proper divisors (811934).

1623862 is an equidigital number, since it uses as much as digits as its factorization.

1623862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811933.

The product of its digits is 3456, while the sum is 28.

The square root of 1623862 is about 1274.3084398999. The cubic root of 1623862 is about 117.5392836809.

It can be divided in two parts, 1623 and 862, that added together give a triangular number (2485 = T₇₀).

The spelling of 1623862 in words is "one million, six hundred twenty-three thousand, eight hundred sixty-two".